let's sit on 

comes from Hebrew: "bo nishev al..."

same as to ask someone to join you for a meal or to smoke a cigarette (most popular usage), but can be used almost in every "join-me-situation"

1: Hey man,we've got a break now - let's sit on a cigarette!
2: No thanks, i don't smoke.

1: I'm hungry, do you know some place to eat?
2: Yes, its an Italian restaurant, let's sit on some good pasta there.

let's sit on by Pilpel September 14, 2006

sit on Gray's pipe 

A euphemism for a sexual style aka cowboy sex.
Sometimes confused with a morning hard on

Emma asked if she could sit on Gray's pipe.

No problem I'll just lay back then said Gray!

Past tense:-
I sat on Gray's pipe this morning said Emma

sit on Gray's pipe by Blade2good December 9, 2010

S.O.F (Sit On My Face) 

When a woman sits on top of a mans face,placing her vagina on his tongue and other various areas of his face.

When you going to S.O.F (Sit On My Face) ma ?

S.O.F (Sit On My Face) by Rugah October 12, 2011

Sit-Spooning 

The act of sitting on the ground, bench or other surface with two or more people facing the the same direction, with full body contact. A variation of the typical spooning, where the same general idea is used in a 'sitting' situation.

Alex, Kane and Taylor were sit-spooning in their family photo, taken when Alex was the oldest.

Sit-Spooning by stephaa June 1, 2011

sit-spin 

While the man is in the woman during sex, the man grabs the legs of the woman and spins her 360 degrees while still riding him.

"Last night i hooked up with this chick and when i was drilling her, she asked me to try a sit-spin. It was the best sex i ever had."

sit-spin by H-man-17 January 12, 2009

Sit Stop 

When you are driving and you or someone else in the car have to go poop. (or if its a girl just do anything) Hence the word "sit"

Joe: anyone need a sit stop before we get on the highway?
Amanda: yes, i have to so bad!

Sit Stop by stevie rock October 24, 2008

Sit - Stay

Sit - Stay is what a group of guys tells a dude to do when they want him to sit on a chair with his hands tied behind his back and blindfolded. Then they each face-fuck him and have cumgasms which he swallows and tries to identify by the taste of their cum. They continue doing this until everyone has been identified.

On one of our FratX night parties, the other cadets told me to Sit - Stay and I had to suck dick until I could identify all the other cadets by the taste of their cum!

Sit - Stay by USAF Cadet September 21, 2021