To procrastinate to the extreme; to say you will do something, but instead take forever to do it, or never do it at all.
"Billy, did you ever finish updating that server?"
"Nah, I'm capping it, sorry."

"I'm totally capping on my homework."

"I'll get right on that, Jeff, but I'm probably going to cap that."
by Endalyor May 10, 2009
someone who has nothing more than the head of a penis, a loser
jimbo: you hit that last night?
johnny: nah, i couldn't seal the deal
jimbo: cap
by driller 50 August 19, 2008
Croatian meaning only
cap 'tzap' - multifunctional word used in all imaginable situations to express agreement, excitement, satisfaction of oneself or surprise. Invented & first used by former Croatian rapper, now a mental patient, Target.
"Cap jebote."
"Yo, that girl be hot. Cap."
"Long time no see, cap cap."
by bijeli decko aka white boi November 03, 2007
In Cleveland, 9 times out of ten it means to lie, front or bullshit. In noun form, a liar, or bullshitter.
Girl 1: I went to the mall and this dude gave me a discount on my Forces cuz I told him he was cute.

Girl 2: You cappin'!

- - - - - - - - -

Boy 1: Last Saturday, I got pussy from 3 different girls.

Boy 2: Man, youse a cap.
by AUTOPSY January 10, 2007
Cuban American Princess. nuff' said.
"Bro, ju gonna meet her parents pero she aint finna give up shit cause that bitch cause she's a C. A. P. , yo."
by Negrito DelaMama August 26, 2006
1)Urban slang term for bullet or slug, originating from the noisy but harmless caps used with a child's cap-gun
2) See JAP, substitute "jewish" for "christian"
Japs call some christians CAPs, but JAPS are more annoying!
by Liz January 05, 2004
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