slip her the tongue 

Short for, to French kiss a girl using your tongue

Did you slip her the tongue?

slip her the tongue by Viking Child January 4, 2015

slip of the lip 

When at least one of the labia majora slip into plain view for enjoyment the general public. May happen during sporting events or beach volleyball tournaments.

Dude, did you see that slip of the lip at the gymnastics tournament? Super hot!!

slip of the lip by Sweenbag July 7, 2016

Slip O' The Thumbs

When you're holding a cat, or any small animal, and it backs onto your thumb, causing you to penetrate the animal.

Gavin had a Slip O' The Thumbs when he was holding Geoff's cat.

Slip O' The Thumbs by AnusFace May 28, 2015

A Slip of the thumb 

is an unintentional mistake made whilst texting, either sending the message to the wrong person or not noticing when predictive texting chooses the wrong word, often to embarrassing or very funny consequences.

a slip of the thumb is or perhaps an email sent by a handheld device. You might not notice when your predictive texting selects the wrong word – book instead of cool for example, or nun instead of mum! I have a Spanish friend 'Viki' V-I-K-I, and when I type in her name it comes out ugli, U-G-L-I. A well-known brand of vodka even comes out as poisoned if you’re not careful.

A Slip of the thumb by Tara.m April 21, 2010

slip her the sausage 

bang her, give her the dick. If you're Italian, you can say "the italian sausage", if you're Polish you can say "the polish sausage" or "the ol' kielbasa", if you're German you can say "the ol' bratwurst".

The first time I saw her, she gave me that old-fashioned romantic feeling, where I'd do anything to slip her the sausage, preferably indabutt.

slip her the sausage by Nick D February 18, 2003

many a slip between the cup and the lip 

Generally refers to a situation where things did not happen at the last minute the way they were expected to due to unforseen reasons

I was to get a raise this year, but it didnt happen due to the merger.
Well my friend, there is many a slip between the cup and the lip!

many a slip between the cup and the lip by Vishal Dhaliwal September 22, 2006

slip her the gimmick 

Euphemism for sex. Gimmick is a catch-all word that ultimately became a nickname for penis, hence slipping someone the gimmick would be slipping a girl your penis.

"I heard Dave and Abi went out and he is going to slip her the gimmick."

slip her the gimmick by -MR July 3, 2008