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4.
A giant asshole that knows how to fool and manipulate emotionally needy women, especially those that are willing to be sugar mamas.
Don't ever date a Keir, he's probably got several sugar mamas on the side.
by SARSKO99 December 10, 2012
12 23
 
1.
A generally awesome person, good at making people happy. Sometimes subject to incredible aggression.

(n.)An act of incredible aggression.
Wow dude, that kid is a Keir!

Watch out he is having a Keir!
by jiminitycrickey May 14, 2009
124 27
 
2.
A Person who has incredible rage, but is caring and loving at the same time.

A god amongst men.

Good friend.
Keir is one of my good friends.

Keir walks like an Angel.
by greggybone July 02, 2009
90 36
 
3.
A charismatic and hot guy.
Carly: Look at that hot guy that just walked into the room, everyone wants to talk to him!

Madison: Yep, he's a Keir.
by rosenthal_ January 21, 2012
45 5
 
5.
A name for a person who has a terrible memory
Person 1: Hey, I looked up my name on Urban Dictionary and it was awesome!

Person 2: I know, you've looked it up before, I was there...

Person 1: Meh, I forgot

Person 2: Jeesus you're such a Keir
by anonymousdoner.. June 11, 2010
21 37
 
6.
(Noun) : Unfortunate male name often given to male babies who look under-nourished and . . . . well. A bit weak and feeble.
Dad - "This is my son. He's Keir."
Dad's friend - "Oh that's a shame. But as long as he's happy. His Mum will still love him."
by Big Mr B October 25, 2009
26 77