Definitions by L. Van Dusen

Birkenshake 

Verb: The action of shaking one's Birkenstock sandal while paused mid-stride to dislodge any small pebbles, sand, mulch or other (usually organic) material.

"Yo, wait a minute, I've got to do the birkenshake!"

Birkenshake by L. Van Dusen February 5, 2012