1.) Kiefer- a guy who usually acts like he doesn't care but really does. afraid of being hurt, he puts up walls that are hard to climb, but once you make it over it's totally worth it.
2.) a Kiefer always has your back, and knows how to make you feel better when no one else can. he is opionated and will stand up for what he believes in. he doesn't care what other people think and he says what is on his mind. he doesn't like other people very much, especially not immature ones. he likes to be alone, but when you do hang out with him, its some of the best times ever. he never says anything nice (or sorry) unless he really means it. girls secretly have crushes on him, but he seems unnatainable, so they don't go for him. all the girls want to kiss him.

3.) "to pull a Kiefer"- to act like you don't care about anyone or anything, but in reality, you care more than most people do.
4.) Kiefer- a superhero of American background with amazing musical and athletic abilities.
male1-"who's that really funny guy who treats eveyone like crap?"

male2- "oh, that's Kiefer"

girl1- "dayum, whos that sexy guy who is so hilarious??"
girl2- "thats Kiefer. But back off, he's mine"
by bigdreamer424 January 30, 2010
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This guy is a tall guy often associated with, or confused with 'Kieth' not the exact best looking, but has a GREAT GREAT GREAT cock. his best friends are mentally disabled, and definitely need help. If you meet kiefer, you should definitely suck his cock
"Damn Kiefer has a huge cock man."
"I know right, I heard it was 523 feet long"
by urmom.com.com.com.com.com.com. February 2, 2022
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A guy who's basically the best a girl can get. He's super sweet and kind of adorable. Most likely a good soccer player, he's got a pretty fab body too.

He's the kind of guy who when you first meet him you think he's perfect, but then you realize, he actually is.
Girl 1: Have you seen Kiefer today?
Girl 2: Yep, i still can't believe i'm dating him :)
by exes.and.ohs January 13, 2010
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A true badass gangster that knows it all.
guy1: man did you see that badass?
guy2: yea man he was a real kiefer
by kbfuckyeah October 18, 2009
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Commonly used "pulling a Kiefer" When you go and have sex for 24 hours straight.
I just popped 4 viagra and about to pull a Kiefer with this sex crazed bitch.
by AK24baseball October 17, 2008
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Kiefer do you want some pudding? It is sooo good to try it!
by Pister March 17, 2011
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Another word for when you assassinate a player in Halo for an instant kill.
"I just Kiefered the kid on the other team! OWNAGE!"
by Tizz Mizzle June 24, 2007
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