fart sandwhich 

The action of catching a fart in your cupped hand and then shoving your hand on someone's mouth.

Bigger gave Dixon a fart sandwhich.

fart sandwhich by ilangsfs November 10, 2008

Fartsandwich 

When you flatulate into the palm of you're hand, close it and proceed to cover a loved one's mouth with your fart hand. Thus, asserting the fart smell onto their lips and ultimately, into their mouth.

Eugene: FARTSANDWICH!
Frederick: Oh man. not again! This one taste kind of good actually.

Fartsandwich by Fagman Joe July 26, 2010