A name awarded to somebody who frequently masturbates. In order to earn this nickname, an individual must masturbate 3 - 5 times daily.
Steve: I just jerked off for the 4th time today. I thought I wasn't gonna finish!
Cliff: You're such a whack boy!
Cliff: You're such a whack boy!
by iluv2jack November 22, 2010

V. To slap or whack a person in the face with your penis. Normally leaves a mark, also known as a mushroom tattoo. Sometimes done during a blow job if it is a bad one, as to punish the person for doing a bad job.
EX1: Dude i was walking down the street when some guy yelled "SHROOM WHACK" and then i got slapped with his cock!
EX2:Bob- Dude I shroom whacked her so hard last night, it left a mark.
Jim- big deal, i shroom whack my lady every night.
Also see cock slap
EX2:Bob- Dude I shroom whacked her so hard last night, it left a mark.
Jim- big deal, i shroom whack my lady every night.
Also see cock slap
by Shroom whacker April 3, 2010

by Elizabeth Smart October 27, 2003

Someone who needs to be taken out (whacked) for stupidity. A job waiting to happen that saves humanity from genetic disorder.
Man: Dude, Joe is a real idiot.
Man 2: Yeah he is going to get fired sooner or later for all the stupid insane things he does.
Man and Man 2: What a whack job!
Man 2: Yeah he is going to get fired sooner or later for all the stupid insane things he does.
Man and Man 2: What a whack job!
by Todd C. October 5, 2007

D-Tos: Yo eric where you at last night?
ELO: Bush whacking over at MB'S
L-WIL: Damn eric that some fine ass bush whacking
ELO: Bush whacking over at MB'S
L-WIL: Damn eric that some fine ass bush whacking
by Eloree123 June 4, 2013

I went round to Tony's and John was there, so after a few cocktails we decided to have a whack job.
Post sport locker room: Guys, we won! Let's celebrate by having a whack job.
Post sport locker room: Guys, we won! Let's celebrate by having a whack job.
by WaxyBellend January 18, 2011

I got Brazilian Whacked today at Dunks. I ordered a coffee with cream and sugar, they gave me one with milk and NO sugar.
by boiled goose July 6, 2009
