When a cock is soo big that when it cums it sprays back and forth like an elephants trunk. Normally used for jokes by waving your hand back and forth and saying blooohhhh.
Person 1: Oh my God i was up all night last night.
Person 2: You know what else makes you stay up all night? Elephant Hand Bloooohhhhhhhh!!!!
Person 2: You know what else makes you stay up all night? Elephant Hand Bloooohhhhhhhh!!!!
by Jimmy P and Mike A May 30, 2009