Top definition
Pronunciation (Koo-puh-toss-oh)

-noun

1. A punch delivered with the middle joint of the middle finger sticking out more than all of the others. The punch is delivered in a vertical manner so the middle joint of the middle finger impacts the center of the recipients skull/scalp. This maneuver generally incites inconsolable rage in the recipient.

-verb

1. To perform a koopataso punch.
After receiving a koopataso from a stranger, Shyne flew into a rage and shot up the club.
by Rhern85 November 18, 2010
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