Mississippi motor boat 

The act of fucking a chick in the ass until she begins to shit, then you proceed to motor boat her asshole.

You hear ol' Tommy gave some bitch a Mississippi motor boat last night in the handicapped bathroom stall of a chili's?

Mississippi motor boat by MustardBreath March 26, 2021

rock my boat

To come close to rocking someone's world, but falling just shy, thus only "rocking their boat"

Friend: What do you think of Susie Q?

Me: Not bad, but she didn't rock my boat.

rock my boat by malice33 January 9, 2011

Glass boat 

A sexual act - One partner lies on their back and covers their face with saran wrap. Then the other person defecates onto their mouth (with the saran wrap acting as a "glass" barrier for the turd "boat".

I couldn't glass boat last night. My stool was runny.

Glass boat by Dwane October 19, 2003

u-boat 

a submarine used in world war one and two

"omg the uboat is coming"

u-boat by Taylor Hewitt October 26, 2004

swift boat veterans for truth 

The partisan right-wing group that launched a bellow the belt attack on John Kerry, saying that he'd betrayed his country and served as a coward in Vietnam. Aparently it's not that bad that george w. bush was a draft dodger.

Anyone with an IQ over 70 can see through the lies of Swift Boat Veterans for Truth

swift boat veterans for truth by wrestlingfreak August 30, 2006

glass bottomed boat 

the act of wrapping seran wrap around a partner's head, and then performing the cleveland steamer on the seran wrap.

glass bottomed boat by Anonymous April 15, 2003

Space Boat 

Another word for spaceship.

Surely, if we can land a space boat on Mars.

When you look out the window of a space boat, you see entire countries, vast swaths of continents.

I fuck space bitches on my space boat.

Space Boat by SantaFucksRaindeer December 3, 2014