Tuna Cave 

1. Stinky fishy vagina.

2. Stinky fish hole.

3. Sloppy cooch.

4. Unwashed pussy.

5. Hot piece of ass.

Basically it can be be anything to describe the woman's privates! Good or bad.

D: Hey are you going to watch Michael Jordan's game tonight?

Ben: Hello no man. I'd rather watch two fat lesbians rub their tuna caves together.

D: That's hot man!

Tuna Cave by Green Eyed Monster September 18, 2009

Tuna Cave 

filling the vagina with tuna fish and having a cat eat it out

i just did a tuna cave with my cats

Tuna Cave by cheesypotatoes April 6, 2011

Tuna cave 

Slang for Vagina.

Come swim in my Tuna cave.

Tuna cave by Stanley from Canada February 25, 2018