Used to describe a selfish person. Commonly used by navy machinists. If a person goes to a vending machine and doesn't ask anyone if they want anything.
"Hey shipmate, how's the soda?" Thank's for not asking me if I want anything. Fuckin' check valve."
"Hey look at that nub over there eating McDonald's. I'm not signing that check valves qual card."
"Hey look at that nub over there eating McDonald's. I'm not signing that check valves qual card."
by TorpMan, Submarines December 15, 2008

by zacccccc November 13, 2007

Street term for Breast Self Exam (BSE). The "breasts" are the "girls." A check-up a woman does at home to look for changes or problems in the breast tissue.
Experts do not agree about the benefits of BSE. Talk to your doctor about whether girl checks are right for you."
by yes juanito yes November 12, 2014

peepeepoopoo check is a sentence that is used in ironic tiktoks or actual funny tiktoks, it's ironic about the pee or poo jokes that toddlers make. it's also the best sentence ever. You can say it and it will make perfect sense at any time.
Jack: I just took a shit
James: Peepeepoopoo check
Carl: look at this drip
Cark: peepeepoopoo check
Roe: peepeepoopoo check "wearing a thanks mask"
James: Peepeepoopoo check
Carl: look at this drip
Cark: peepeepoopoo check
Roe: peepeepoopoo check "wearing a thanks mask"
by akselly October 3, 2020

by TheBurninator December 18, 2003

by fatnutz July 26, 2006

Something you do before using a racial slur. You look around to make sure nobody of the race you are offending is present.
by Veldmar December 8, 2011
