sit on the grenade

1. After the man in the black pajamas throws a grenade in the middle of your unit, the sacrificial act of covering the grenade with your body in order to shield your comrades from the blast.
2. To occupy (especially through sexual activity) a hot chick's ugly friend so that your friend can score with the hot one

Bill: I need you to sit on the grenade
Jim: No way, I wouldn't even give that girl a hot carl.

by Jake E. Pants July 14, 2002

Car sitting

When you sit in your car doing nothing but browsing through your phone and listening to music.

My boyfriend is always car sitting

by Sassy Sav July 3, 2019

sit and surf

When you take a crap while going on the internet on your laptop

Dude i really wanna sit and surf right now.

by PMC1120 July 1, 2009

Sit and shvitz

Incorporating the Yiddish term for sweat, this phrase refers to
the use of a sauna

After he finished working out at the health club,Eric
opted for a sit and shvitz...

by sheila in the car June 17, 2013

Sit on him

Sit on him is for girls to sit on boys for the whole of January (it can be whoever they want) no feelings attached

You see sit on him

Sit on him is in January

by Hornhornhornhormhormh December 22, 2020

Sweat sitting

When you sit for to long and there is excessive sweat on your but

You look like you have been sweat sitting for a while

by Bang tan army September 27, 2021

The Sapphic Sit

When a sapphic woman sits with her legs spread out ,bending forward over her thighs,with her elbows on her knees, letting her forearms dangle ,and looking gay asf.

“Do you know if she’s 💅🏾“
“Yea she’s doing The Sapphic Sit”

by KingAchillean January 9, 2021