1 definition by Billy Pilgrim IV
Yummy-butter is a phrase which can be used to express happiness, glee, and/or pleasure for a certain situation and/or person. The phrase was invented by the Nisenson family and is now a world-wide phenomenon. Yummy-butter: learn it, love it, live it.
Hayley: "Holy shit I just hooked up with an Abercrombie and Fitch Model."
Caroline: "Ooo yummy-butter how was it?"
Hayley: "It was fucking amazing!"
Hayley: "Yo son lets go roll a blunt."
by Billy Pilgrim IV Mar 25, 2007 add a video