A stretched out young surfer's anal cavity, from La Jolla, whos anal cavity has been stretched out by older members of WSR. Often seeps out shit from the anus and the mouth.
"DUUUDE i TOTALLY WRECKED THAT GROM LAST NIGHT
like I TOTALLY GAVE HIMA GROMMHOLE"!!!!!!
by GROMBOMMMMMMMBBBBBBBBBBBBBS September 10, 2009
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A grommhole is your dickhole.
It's where piss and jism squirt out of.

It really hurts when you stick things in it.
After I covered my dick in IcyHot and jacked off my grommhole hurt like a mother fucker!
by TakaTakaTacos11 October 8, 2007
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