nimnoid 

Clueless person. May be spaced out, oblivious. Common sense and/or common courtesy are alien to them. Applies to both someone who is unintentionally/passively irritating, and one who is deliberately so.

It's a silly put-down, so chances are after you use it your anger/annoyance will subside a little.

"You nimnoid, you swiped the last ice cream sandwich! You knew I wanted that!"

Someone cuts you off in traffic. You shout after them, "NIMNOID!"

An obnoxious person finally vacates your personal space. You mutter after them, "nimnoid..."

nimnoid by Ainsel July 8, 2010

nimnode 

Someone or something that is acting without common sense.

A stupid action.

In class:
*Student walks up to the white board in the middle of class and draws a smiley, then sits down without being seen*
Teacher: "WHAT NIMNODE WOULD EVEN THINK OF A STUPID IDEA LIKE THIS TO DRAW A SMILEY IN THE MIDDLE OF CLASS!!?!?!??!?!?!"

nimnode by hamster101 August 1, 2011

nitnoid

Of no consequence, minimal or not significant.

The workday offers many "nitnoid" tasks that must be completed for the mission to be accomplished

nitnoid by Joseph Cook June 17, 2003

nimnod 

A know-nothing. An ignorant person.

Nobody tells me anything; I'm just a nimnod!

nimnod by Petev May 16, 2006

nimroid 

noun. Used to describe a person. A word that combines the term nimrod and the word hemroid, it is used to describe someone who is exceptionally annoying as well as uncommonly stupid. The most simple explaination when a person asks what the term you just used means would be "You are as dumb as a nimrod and as annoying as a hemroid...therefor you are a nimroid.

My girlfiend's little brother won't ever leave us alone long enough for me to slam it in her ass. He just keeps bargin in everytime I get ready to spit on her and throw it in. That kid is such a fucking nimroid.

Your dad is a nimroid. Your mother is a nimroid. I should have known...they would make a nimroid bitch like you.

nimroid by Dylan Fletcher June 9, 2005

nitnoid

Nitpicking and annnoying

Do not be a nitnoid.

That is so nitnoid!

nitnoid by Ken Davis February 21, 2009

nimnod 

A really cool, super awesome, interesting, arty, hot, sexy pansexual girl.

-"I need to Nimnod up my game if I'm going to rock this party tonight"

-"When I meet hot Nimnods like that I get all sprung".

nimnod by M.Sue October 27, 2009