The act of being so fucked up that you cant move.
"Dude im steining hard right now, im fucked up."
the act of masturbating to your girlfriend sitting on the toilet after Red Lobster's Crabfest with a manikin's hand wedged up your ass
Example 1: yo have you guys seen my manikin anywhere...? we just got back from the Lobster and my girlfriend is about to shit her pants
Example 2: next time i go steining my girlfriend said i could wear the skream mask
Example 3: next time i go steining itll be after the all you can eat shrimp
The act of farting into a ceramic cup, mug or vase to produce a hilarious muffled farting sound.
I love steining into mugs!
When your friends get together and play rock band while making up many inside jokes that nobody would understand except for the people involved in the said; rock band game.