To fart fast, also known as a fast fart.
Wow some jet just broke the sound barrier.....nah, Rachael just Farst
by Blonde86chick March 24, 2011
a homo way of saying fast, coined by some limey and used constantly by some horrible spawn of their's on a constant basis.
21:00 <Elixir> I found myself questioning why people say "Fasst" in america and not "Farst" last night
by guess January 11, 2004