Top Definition
A competetive encounter between two (usually young) males of Italian/Hispanic heritage.

Derived from the term "dance-off" and the common perception that such ethnicities are "greasy".

Can involve posturing, dancing or weaponry depending upon the wishes of the participants.

Often conducted for the benefit of a female onlooker.
Wow look how Jose uses his blade! He will cut off Xavier's dick if this grease off gets any more intense.
by der Alte Fritz July 28, 2006

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