Definitions by CactusShaker9000

shake the cactus 

An awesome way to describe urination or masturbation..

Or all the above at the same time

Student: Excuse me sir, but I gotta go shake the cactus
Teacher: OK, be back before the lesson starts

Friend 1: Man, she's so hot, I might just go shake the cactus
Friend 2: YES

shake the cactus by CactusShaker9000 January 12, 2012