The speed at which one subject farts......there is a time gap......then the fart is heard. That time is know to be Mach 2.
IT IS THE TIME THAT IT TAKES A FART TO ENTER EAR AFTER LEAVEING BUTT. note: it is on every fart.
joe:(farts) safety, no blitz, no bonus!!!!!
jeremy: don't say all that hubba bubba, just say mach 2
joe: your awsome
jeremy: i know
by Joe Battaglia December 20, 2006
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Having sex on a jet that is at least in mach 2.
I was in the air force, and I took this chick on my jet, and after we had sex I officially became a member of the mach 2 club.
by dude June 22, 2003
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