Poop Tuna 

this is what you get when you fuck a chick in the ass, and then without cleaning your tool you put it in her pussy. Now you have Poop Tuna

Dude! Last night I met this chick and I got some poop tuna.

Poop Tuna by tile man August 3, 2008

Tuna Poop 

caused by eating tuna, a tuna poop is the most foul, disgusting, smelly, rancid poop anyone can ever take

Hey Matthew Peterson, did u take a nice tuna poop after ate all that tuna?

Tuna Poop by Big Penis M February 15, 2012