A Thunder Biscuit is a fart let out with such a force that it causes your buttcheeks to clap with a thunderous noise while simultaneously causing you to involuntarily deficate yourself releasing a sewage like gas into the air causing the surrounding area to become uninhabitable momentarily due to its longer than usual hang time.
by Thunder Biscuit September 30, 2016

The labia majora, or pussy lips
by Ferguson May 28, 2005

"My Disco biscuit hasn't started kicking yet, I'm keen to munch another biscuit, but I only have 1 bikkie left and I want to save that for later."
by Diego August 31, 2003

If a fat kid has biscuit knees and he's about to go on a slip 'n' slide, it means he's ready to party! Warning: It is NOT Mic Jagger!
Seth Meyers: That guy looks lame.
Stefon: But he's got that thing where he has biscuit knees.
Seth: Of yeah, riiiiight, that common thing. Ok.
Stefon: But he's got that thing where he has biscuit knees.
Seth: Of yeah, riiiiight, that common thing. Ok.
by LMG123 November 26, 2010

My twenty-year-old car has had the biscuit.
by Bob the BlueBerry February 20, 2009

a gathering of two or more males who then race to see who can masturbate onto a biscuit (cookie, piece of bread, whatever) first. The last to get off must then eat the biscuit in front of everyone else.
by manrilla14 November 26, 2003

1. A noun meaning a helpless idiot.
2. A person incapable of using their brain.
3. A person who accepts mediocrity and defects.
4. A person/thing trying to blame others for their faults.
2. A person incapable of using their brain.
3. A person who accepts mediocrity and defects.
4. A person/thing trying to blame others for their faults.
1.That biscuit doesn't even know how to turn on a camera!
2. 2 + 2 = 5 right? Wrong, you are such a biscuit!
3. 100 defects in a row? Wow, what a biscuit!
2. 2 + 2 = 5 right? Wrong, you are such a biscuit!
3. 100 defects in a row? Wow, what a biscuit!
by waterhole101 July 4, 2012
