rip a fart
To pass gas, expel gassous materials from ones anus.
My roomate had to rip a fart, so I got the hell out of there.
Ripping fart
A ripping fart is a powerful flatulence that feels as if rectal rupture has occurred.
Chief Turd in the Face, let a ripping fart so painful, that he feared he might need ER care.