The act of mashing ones testicles into a female vagina. It provides no sexual satisfaction, but it sure is fun!
Dylan: You hit that?
Jim: She's a little freaky. She just wanted grapes in the tuna, and that was it. I had to finish off when I got home.
Jim: She's a little freaky. She just wanted grapes in the tuna, and that was it. I had to finish off when I got home.
by Dylan Donnie-Duke Dali Llama September 21, 2018
Get the grapes in the tunamug.