1 definition by J.Gannon&C.Paul

Grimace: Choking a girl during sexual intercourse. The name however is not derived from the face made during the act it is however derived from the fact that the girl may or may not turn purple which would cause her to resemble the McDonald's character Grimace. Variation: Uncle O'Grimacey: Choking a girl of Irish ancestry during sexual intercourse or the chocking of any girl on St. Patrick's Day.

Warning: The Grimace and Uncle O'Grimacey are not meant to be fatal but rather to enhance both partners experience's.
After the movie i took sally back to my place where i promptly gave her the grimace.
by J.Gannon&C.Paul February 25, 2008
Get the Grimace mug.