look up any word, like darude - sandstorm:
 
1.
A baker's dozen of dicks. No more, no less.

Related to the slang term mad, indicating "a lot" or an undefined large amount. When applied to dicks, however, "mad" signifies exactly thirteen.
"I JUST WANNA SUCK MAD DICKS TONIGHT. Do you happen to have twelve friends?"
by Beau Shuda October 20, 2011
6 1
 
2.
a madman's most prized and th'cratched possession, also one of the main reasons why da fanokie wuvs him
when da maddick is off da yahoo, da fanokie throws a hissy fit
by oke December 11, 2004
6 4