Dynamic Inertia

a property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force but dynamically as in the Shake Weight™ product which ignites the muscles in your arms, shoulders, and chest.
Works out your arms, shoulders and chest in just 6 minutes a day

You will feel it instantly

My wife purchased the Shake Weight™ today. I could have saved the $19.95 and had her practice Dynamic Inertia on my cock.

by Sir Bacon Longshanks October 7, 2009

insertions

enough said

by Anonymous August 28, 2003

hot insertion

when a bunch of men (usually big and sweaty) load up into a helicopter and get dropped in the middle of a forest fire with chainsaws.

Barron: "Back in my day I used to always perform hot insertions with other men"

by Boyce toucher 1000 November 10, 2008

Insertive

When a person constantly inserts themselves into situations that don't include them

Boy: wyd?

Girl: headed home to catch up on some shows on Hulu. You?

Boy: I'll be joining you

Girl: you're very insertive

by TayDub August 10, 2016

insest

When people in the same family fuck or have some kind of sexual contact...

((sex-head-eatin out-fingered-kissing-beatin meat))

Rita.She fucks her brother.

by Annonymous February 21, 2005

Intertwangle

To wrap vines around an alcofall's structure to give it a more genuine jungle look.

We had to intertwangle those vines around the alcofall for tomorrow's party

by 6chicks January 20, 2009

Tactical Insertion

When you are having sexual intercourse with a women, and you suddenly pull out and stick it into her anal cavity, then claim it was an accident. Not to be confused with the term from, "COD:MW4"

Rhett: "Shit man, my girl won't let me do anal. Time for a little "Tactical Insertion."

by vantheman November 23, 2009