When your penis slips out of a hole in your underwear, a rip in a seam, or that stupid flap in the front that no guy ever has used to to go pee.
by Ryanverse August 28, 2022

by SlipItinMeShelly October 8, 2019

Miracle slip is when a man is having vaginal intercourse with a woman and mid thrust the penis accidently enters the rectum.
by Soup Kitchen Sammy June 5, 2018

I tried to tell my best friend I hated My Chemical Romance, but did a slip-up and said how much I like there third album, The Black Parade.
by pokeyofthelost January 16, 2022

When a person (Usually Polish/Eastern European), works a self-employed job and gets paid with cash-in-hand to avoid paying income taxes.
by CrypticReich October 24, 2020

To have sex while behind a girl in her anus. Usually at a pool party when you pull the bikini bottom to the side and "slip a quick one" (or a quicky).
"Your pool party was dope Billy, I slipped 3 quick ones on Marge!" You should go slip a quickone on your girlfriend Heather!"
by Kozzer January 3, 2018

A moment or surprise as you fall over and somehow land inside a woman. Although it was an accident you play it off as it was on purpose and impress the lady. Not many men can pull this off but if you can you must be very tactical.
Girl:"hey, babe im ready..."
Man:"Im coming babe*slips over(tactical slip)"
Girl:"Wow you're so trained, you must have done this before"
Man:"Im coming babe*slips over(tactical slip)"
Girl:"Wow you're so trained, you must have done this before"
by Twixxxy July 27, 2018
