smooth fart 

to not give a damn; to not care one way or the other; to not give a shit; to not care what someone does given a choice of two options; the opposite of a chinese firecracker fart

originally from "The Soloist" when Robert Downey Jr's character tells Jamie Foxx's character nonchalantly, "I don't give a smooth fart whether your stay or go."

Dude 1: "Which computer are you gonna buy? Laptop or desktop?."

Dude 2: "Man, I don't give a smooth fart which one I get as long as they both play World of Warcraft and I can update my Facebook page."

smooth fart by Jimmy Jackass September 9, 2009

Smother Mother 

1. A clinging Matriarch, who has to know every goings’ on of her son or daughter, even when they have left home.

Rachel: “My Mom is driving me nuts!”
Tom: “Why’s that?”
Rachel: “I moved out 2 years ago, but she has to constantly know where I’m going, who with and for how long I’m out”.
Tom” “Bummer, girl”.
Rachel: “Yeah, she is a “Smother Mother”, for sure.

Smother Mother by Bayareaboy17 June 1, 2017

Smother Kart

A racing game (like Mario Kart) where a man and a woman play as a team. The man handles the controller while the woman sits on his face and uses his cock as a joystick. He must then attempt to navigate the race based on how she handles his cock.
Optional rule: The car may only be in motion while she is smothering him. The car must come to a stop whenever the man needs to breathe.

This racing is getting boring, let me sit on your face so we can play Smother Kart.

Smother Kart by Flynn Morgan February 3, 2022

Smother Me

To be so incredibly in love with someone that all you want to do is smother eachother in overflowing love, hugs and kisses.

I love you, will you smother me ?

Smother Me by Baleabodylotion December 30, 2009

smother-in-law 

A mother in law who is overly involved and intrusive in your marriage so that you feel smothered by her presence.

My smother-in-law has announced that she is going to stay in our (small!) house for a few more weeks.

smother-in-law by oversharin June 5, 2009

smooth your dog

A Bristolian phrase for petting your dog.

Bypasser: Ooh lavely dag, do yous mind if I smooth your dog?
Dog walker: Err, OK?

smooth your dog by MNZT November 26, 2016

Thigh Smother 

A Wrestling move involving a girl, ussually with thick thighs, putting her thighs on a guy or girl's mouth and nose, smothering them
and ussually knocking them out. Preferred clothing is a flimsy

skirt.

Izzy thigh smothered marco with her mighty thunder thighs, knocking him out and almost killing him.

Thigh Smother by Lichkingisraphel October 27, 2011