um... 

an answer commenly used when your screwed.

dad: "did you have sex with my daughter?"

man: "um..."

um... by cheya July 5, 2008

Um... 

A sound you make when you can't find the words you want to say but you have to make some kind of sound

5 year old: Lisa
Lisa: Yes child
5 year old: Why do my parents have sex after they yell at eachother?
Lisa:Um...

Um... by SockWitch November 19, 2017

um

The word used when the speaker is unable to find the correct term.

I am supposed to um... use this word in a sentence.

um by Elizabeth Grey July 9, 2016

um

sound which verbally comes out the mouth. the other variation is uh and they both mean nothing

um ok m8

um by Lukasucksatdefinitions May 3, 2020

um

More recently used to unintentionally irritate people who prefer straight forward answers. Literally, "something is urgently wrong but instead of me just immediately telling you, you must figure it out yourself in the amount of time it takes me to make this sarcastic and unhelpful remark."

Can be typed as well.

Example, this used to be proper protocol in an urgent situation--
Bob: "Joe, watch out for that large pothole you seem to be unknowingly driving into."
Joe: (avoiding pothole) “Thank you for your timely and straight-forward warning. I appreciate you using the first sentence after you were alerted to this danger to tell me about this pothole, instead of uttering a one-worded, useless phrase.”

Modern protocol, same situation--
Bob: (sarcastically) "Um..." Joe: “What?..... What?” (car drives into pothole)
Bob: “Wow, good job.”

um by Jake Gus December 1, 2004

um

one of the 2 most commonly used words in the english language (the other is uh)

usually it means that the speaker is searching for an idea (or at least thats usually when i use it)

reporter: y is the segway too redundant?

dean kamen: um...that is...um well...

um by unusu-al December 7, 2003

um

a word used as a filler in a sentence. mainly used by blondes in a situation when they have nothing else to say

brunet: THE HOUSE IS ON FIRE!!!!
blonde: UM...WHAT DO WE DO?

um by me silly! May 17, 2011