1 definition by d-carlmafia
this is a gay sex act involving 3 guys. one man ejaculates into another mans butt. then the 3rd man does that same man in the ass. the receiving man then farts releasing a cloud of cum-laced "diesel fumes" which covers the bodies of the other two guys who are known as the "dirty diesel boys"
hey guys, this rainbow club is pretty hoppin' but wanna go back to my place and do the dirty diesel? you guys can be the boys if you want
by d-carlmafia March 9, 2016