The act of capturing a fart in ones hand and then holding it over another's (or own, if desired) mouth until victim breathes, leaving them with the taste of flatulence in their oral cavity.
"Oh man, Robert just butterfingered Kenny." ~Conor
"I can still taste that fart from Conor's butterfinger." ~Robert
"I can still taste that fart from Conor's butterfinger." ~Robert
by Dikfore January 24, 2006