The act in which two white males, after performing simultaneous fellatio upon one another, engage in a passionate kiss to suffuse the collected seamen between the two oral cavities.
Billy and Kenny celebrated their 3 year anniversary with a night filled with passion only to finish with the sharing of an avalanche before drifting off to sleep in tender embrace.
by Hellooo Nurse! July 29, 2016
by Bigfacez July 18, 2010
by Tyler Jones 11 April 25, 2008
When a really fat man is getting a blow job, he holds up his fat gut, then drops it on her head and yells... \"AVALANCHE\"
by whoknows65 April 26, 2005
When a man ejaculates on a woman's chest while she's sitting upright. The sperm slides down the chest like snow sliding off a mountain during an avalanche.
I was going to give her a pearl necklace, but she said her sheets were new. So I gave her an avalanche instead.
by Likquid July 25, 2010
Similar to the snowball, an avalanche is a sex act in which multiple men ejaculate into a person's mouth and that person then kisses another, forcing all of the semen into the receiving person's mouth.
That bukkake party was going great last night, until Rachel got up and avalanched Dave. Dave will never be the same again.
by Son of Stone November 02, 2013
by Scotty Diesel February 08, 2007