wet backin

When you make her so wet when you're having sex that her back is covered in it, and so is the front of you.

I was so good last night, I had my girl wet backin.

by DatOneFrFr January 11, 2023

Shrimp Backin'

The act of having noticeably poor posture, as a result of long-term slouching, causing a person's figure to resemble that of a shrimp.

Person #1: You trying to get into something tonight?
Person #2: My spine hurts from shrimp backin' all day.
---
Person #1: Man, that dude over there obviously has scoliosis.
Person #2: That's ol' shrimp back, Jack, cut him some slack.

by Thin Glizzy January 16, 2021

Trail backin

The act of shitting on one's facial area

"dayum I'm getting horny after this 2g1c vid... I need to do some trail backin"

by Codythomasbitches August 02, 2009

backin' one out

to let go of a large turd, take a dump, drop a deuce.

"Has anyone seen Fred?"
"Yah, he's on the shitter, backin' one out"

by Capjeff August 31, 2008

Backin' Down

When you've gotten to the point where you cannot smoke anymore nicotine products because your hands will not stop shaking.

"Dude, I'm Backin' Down on this hookah. After a Watterpipe and a cig, I'm done for."

by StonedAssington February 28, 2012

Big backin

The act of eating like a big back. Hunched over a huge plate of food, a big back has to advance his shoulders to get his face over the plate, or else there's a stream of stains down his shirt. With his shoulders forward, his upper back is "big".

That dude is big backin that food

Stop big backin, we've got plenty of time to eat.

by jmbartho January 25, 2025

Backin

Going with, or agreeing with someone

Why u backin wit dat stuff?

Yea, I'm backin wit dat

by PBG.C'S August 26, 2017