Top definition
A cum geyser is when 2 guys are having sex and they both get close to finishing and they put their cock heads together so that when they cum, it shoots up like a geyser.
Tony, we need to clean the ceiling off from our cum geyser last night.
by Nevets Cool kiss October 14, 2008
Get the mug
Get a Cum Geyser mug for your cat Günter.