pejorative One who makes it appear as if they're an expert on a subject while there are also signals (subtly or blatantly noticeable) that this person doesn't know very much on the subject or at least as much as they're acting like they do on the subject; pretending to have much knowledge on a subject matter
(Note: there are countless ways to seem knowledgeable on a subject as by behaving correctively and correcting people all the time, giving unwanted advice, expressing opinions as fact, not accepting advice or information from others, etc., but when there are also indicators that one doesn't know what they're talking about, they're considered a know-it-all or engaging in know-it-all behavior)
"Even though I'm only fifteen and I've never held a job before I want you to listen to me carefully; on your interview, if you're not sitting cross legged, they won't hire you. If you don't nod, they won't hire you. Employers hate when you don't wear a tie. Companies these days aren't into what's on your application. Employers these days are real into the whole look aspect of it all. Take it from me," said my know-it-all son before I handed him his schoolbag and replied, "Shut up and go to school, dear!"
I found it shocking that some know-it-all bum out on the street was telling me how to handle my taxes the right way.
I try very hard not to seem like a know-it-all when discussing scientific matters; I provide evidence and back up what I'm saying and explain to others of my college experience in the field. That way, people regard me as knowledgeable and not a know-it-all.
"Even though I'm only fifteen and I've never held a job before I want you to listen to me carefully; on your interview, if you're not sitting cross legged, they won't hire you. If you don't nod, they won't hire you. Employers hate when you don't wear a tie. Companies these days aren't into what's on your application. Employers these days are real into the whole look aspect of it all. Take it from me," said my know-it-all son before I handed him his schoolbag and replied, "Shut up and go to school, dear!"
I found it shocking that some know-it-all bum out on the street was telling me how to handle my taxes the right way.
I try very hard not to seem like a know-it-all when discussing scientific matters; I provide evidence and back up what I'm saying and explain to others of my college experience in the field. That way, people regard me as knowledgeable and not a know-it-all.
by Rick Warwick August 28, 2008
A person who's quick to oppose the opinions, input, or approaches of others in seemingly every aspect of life by always trying to correct others with their own input that they present in an instructive fashion
Ann: "I'll get Jerry some tylenol and-"
Pat: "Actually, when someone feels this way, what they need is chicken noodle soup and crackers."
Amber: "I'll run to the store and-"
Pat: "ACTUALLY making it from scratch is much more healthy than going out to the store and getting it."
Mark : "Pat, quit being a know-it-all. Yo momma!"
Pat: "Actually, when someone feels this way, what they need is chicken noodle soup and crackers."
Amber: "I'll run to the store and-"
Pat: "ACTUALLY making it from scratch is much more healthy than going out to the store and getting it."
Mark : "Pat, quit being a know-it-all. Yo momma!"
by Man Tolam July 21, 2008
A person who thinks they are all that and a bag of potato chips. They correct people all the time in an annoying, rude way.
Mother , father, and daughter are in the room.
"What is wrong." Father asked.
"I'm sick. I don't feel so good." mother answered.
"It' s not ,'I don't feel good', it's I don't feel well "daughter said.
"Don't be such a know it all" said the mother.
"What is wrong." Father asked.
"I'm sick. I don't feel so good." mother answered.
"It' s not ,'I don't feel good', it's I don't feel well "daughter said.
"Don't be such a know it all" said the mother.
by sour grapes i hate kias December 31, 2016
an offensive term for an arrogant person who professes to know everything in 1 and only one subject but in reality they know absolutely nothing in that subject.
please do not confuse a know-it-all with a pundit, or someone that is blowing fairy dust up your skirt. they are 3 completely different things.
by Sexydimma August 6, 2014
A Know it all is an egotist or most likely prideful or egotistical type. Know it all is someone who acts and thinks they know everything constantly. And they like to argue with people a lot. If a person is argumentative and argues with you so much it makes them a stubborn person and stubborn people like that think they are right about everything. A know it all is a hardhead who thinks they are smarter than others.
Jerry is a know it all because he argues with emma because jerry thinks he knows more about science than her.
by TheAwesomeJUNK June 26, 2019
A walking dictionary. Somebody who either has to have 2 or more definitions per word for every one definition you type, or has to have a comeback example of the word, or another way it is used.
True Know it all- Peace is also an interjection Bart, you didn't know that because it wasn't on your list of uses of the word peace, and you were dead serious when you said it.
Bart-You're being kind of hard on me don't you think? I made a list of everything but interjection for peace, and it wasn't good enough for you know it all.
Bart-You're being kind of hard on me don't you think? I made a list of everything but interjection for peace, and it wasn't good enough for you know it all.
by Solid Mantis September 3, 2018
a person who often makes up facts or stories to make themselves sound or appear smarter, when in reality they come off as a true idiot. They often refer to books or movies that have to actual academic holding.
She's such a know it all, she tried telling me I needed a cup of salt to make chocolate chip cookies to bring out the flavor.
by khenderson November 29, 2010