foreskin submarine is pulling into tuna town for a three night stay 

sexual intercourse; the proverbial "bone dance," to get a leg over.

When I get home tonite, my wife will be orgasmic when the ol' forekin submarine pulls into tuna town for an extended stay.

foreskin submarine is pulling into tuna town for a three night stay by weave March 24, 2003

takin the o'l skin boat to tuna town 

to have sex

"i'm takin the o'l skin boat to tuna town tonight.

takin the o'l skin boat to tuna town by verb dog August 29, 2011

Parking the pigskin bus in tuna town 

A quaint euphemism for heterosexual sexual intercourse.

Police officer: What are you doing in the back of that car sonny?
You: Parking the pigskin bus in tuna town, sir.

Parking the pigskin bus in tuna town by Aaaardvark November 27, 2006

Bologna Bus to Tuna Town 

sexual intercourse - placing the male penis into the female vagina

Sally, when can I drive the Bologna Bus to Tuna Town?

Bologna Bus to Tuna Town by Esola June 13, 2006

drive the pig skin bus to tuna town

Penetrative hetrosexual sex.

Man, Tonights going to be be great. I am going to drive the pig skin bus to Tuna Town with Angela.

drive the pig skin bus to tuna town by Hip no tiz er April 26, 2006

parkin' the beef bus in tuna town 

Made famous by Jimmy Pop of The Bloodhound Gang in the song "A Lap Dance is so Much Better When the Stripper is Crying", it essentially means the cock entering the vaginga.

"So, Bambi's goin' on about how she can make all my fantasies come true.
So I says, "Even this one I have where Jesus Christ
is jackhammering Mickey Mouse in the doo-doo hole
with a lawn dart as Garth Brooks gives birth to something
resembling a cheddar cheese log with almonds on Santa Claus's tummy-tum?"
Well, ten beers, twenty minutes and thirty dollars later
I'm parkin' the beef bus in tuna town if you know what I mean."

parkin' the beef bus in tuna town by Ian Schultz September 23, 2007

take the skin boat to tuna town 

To have vaginal sex.

take the skin boat to tuna town by Ian Chode April 4, 2003