Top Definition
Phrase used to describe the act of masturbating.
Person 1: Hey, why is the camper rocking?

Person 2: Wait a minute. Who the hell is slinging mayonaise?

Asian: No idea. but whoever it is, stop.

Person 1: Yeah beating off with a bunch of guys is lame
by longboarder870 May 04, 2009
5 Words related to Slinging mayonaise

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