1 definition by El ChaCha

An upward motion of the hand in between the legs of an unsuspecting party. The motion begins at the knees and moves upward 3-6 inches, as to not touch the party's genitalia - but so as to solicit a shock or surprise. The upward hand motion also includes, a side to side flapping as to emulate the motion of a salmon's tail in the water.
Brenda sloppy salmoned Mike to humiliate him and emasculate him at the party.
by El ChaCha December 12, 2011
Get the Sloppy Salmon mug.