Killing someone by means of shooting in the head, causing their cranium to take on a look as if it were "peeled" back.
One wrong move and your cap's peeled" -- Ice T

You're too drunk and high to peel a cap. I'll do it. Bitch, what are your final words before your cap gets peeled
by WeedMoneyHunger March 7, 2010
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To shoot someone in the head.In the process there skin is peeled from the bullet entry.
I love blowin mothafukaz heads off.Today i gotta peel a cap!!
by Downer1 P.A.K. July 31, 2006
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to shoot a gun, that is to 'peel' a cap from the chamber or clip.
I'ma peel a cap off at this bitch
or
I'm gonna peel a nigga cap.
by alexb December 3, 2005
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To shoot someone in the head with a firearm: cuz if you shoot someone in the head while they're wearing a hat, you 'peel' their 'cap' off.
To 'peel a cap' in "Hood Took Me Under" by Compton's Most Wanted:

"This fool I thought was my homie, dropped a dime,
So I gotta peel his cap with the 9."
by Lil Dre March 19, 2006
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An event or experience so intense and mind-blowing, that it has the power to peel back the foreskin of an uncut penis.
Brian: Hey, did you see that flash mob hit the 7-11 on Charles?
Bill: Yeah, they trashed the place in like 15 seconds
Brian: I bet that doesn't happen up where you live
Bill: Hell, where I live, it'll peel your cap back just seeing more than 2 people at a store at once
by FriendOrFlake December 4, 2014
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the art or cutting a mans dickhead off, preferable with a prison shank seeing how that where this saying came from
peel his muffin cap back blue
peel this motherfuckers muffin cap back blue.

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The act of performing a right hook punch to someones forehead until it breaks the skin causing massive swelling to the to the head, giving the victim the appearance of having a muffin for an upper skull.
"There's no way those two Nigerians would have let him survive a fight, they would peel his muffin cap back blue!"
by Andromeda Delux February 21, 2019
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