Practical Joke involving farting on a pillow, then briefly smothering someone with said pillow. A variation of that old classic, the Ducth Oven.
A good fart pillow involves the perpetrator shouting "FART PILLOW!!" at the top of their voice when doing the deed.
by Charlie Amos January 14, 2008
When, in an effort to be funny, you back up against someone and let it rip. The recipient has become your fart pillow. Another variation is fart cushion.
by bobby the douche February 12, 2005