Top Definition
Vagichasm is a truley large vagina, so large that when a penus is removed during sex an echo of the sound of the penus being removed echoes back more than one time - can also occur when a dildo, banana, cucumber, or large salami is substitued for the real thing.
When I pulled my penus out of my girlfriend's vagina I could hear a vagichasm that resembled a sloshing sounding echo coming back to me.
by Lee Kirby March 08, 2008

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