1). An overly dilated anus.

2). ProteinLily.
Holy crap! ProtienLily has a cavernous asshole!
by John Doe September 8, 2004
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The gapping hole of your ass after being butt fucked.
You should have seen the size of Lisa's crap cavern after I fucked her.
by Cameltoe Raider January 25, 2003
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Similar to the Klingon Right of Ascension except the pain sticks are replaced by penises.
Barry thought he was a real hard ass but he didn't even last 6 minutes in that Honor Cavern on his birthday last Friday.
by Gibby Mumford May 26, 2020
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the cunt of a slut. a huge open space with all sorts of cum stalagmites and stalactites and shit. some grimy shit right there
your grandma's such an old ho she's probably got a cum cavern
by cs2toktos October 2, 2011
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When someone takes a straw, fills it with pop rocks, inserts it in ones anus and then proceeds to blow in the other end.
Yo dude, last night I just crystallized her caverns.

Siiiick, you gave her crystallized caverns.
by BraziarK September 29, 2019
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A bizmal hole that could, is, or was at one time filled with ejaculate.
Man we should leave this bar, it's a total jizz cavern.
Have you checked out the strip club it's a jizz cavern. Mom don't pick up that sock it's my jizz cavern.
by Ccity 3147 September 10, 2009
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