Amphetamine speed, whizz
Derived from name Billy Whizz, a character in the Beano (UK children's comic).
Derived from name Billy Whizz, a character in the Beano (UK children's comic).
by mehere December 9, 2008
Get the billymug. a slang term used to describe the mans penis when in classrooms, around women, moms, and girlfriends.
Dude 1: man, i beat the hell out of Billy last night. He stood up to me so i pounded him into submisson and made him throw up.
Girl: whos's Billy?
Dude 2: you'll find out soon enough ;)
Girl: whos's Billy?
Dude 2: you'll find out soon enough ;)
by Schlong Mydong January 9, 2013
Get the Billymug. A uncivilised individual with the intentions of creating terrorist attacks. They usually wear overalls.
Man: "Hey have you heard of that recent terrorist attack that happened in Ohio?"
Women"Yep i heard it was done by a Billy"
Women"Yep i heard it was done by a Billy"
by Nonbank June 9, 2018
Get the Billymug. A billionaire. And no, "billy" is not derived from Bill Gates.
by RoddickRemixed October 20, 2007
Get the billymug. 
A pansexual dilettante and/or sequential hermaphrodite who makes odd, senseless statements and spills his Dairy Queen upside down trying to be like the commercial.
Awesome Guy: Why'd you dump out your Blizzard on the ground?
Billy: They did it on the commercial.
Awesome Guy: You're such a pansexual dilettante and/or sequential hermaphrodite. Shut up.
Billy: Okay.
Billy: They did it on the commercial.
Awesome Guy: You're such a pansexual dilettante and/or sequential hermaphrodite. Shut up.
Billy: Okay.
by NotBilly July 18, 2009
Get the Billymug. Billy is so stupid
by SwimmerGirl223 September 2, 2016
Get the Billymug.