Instarrhea

Instant diarrhea. A violent form of diarrhea that consists of hot liquid shit ejected from the rectum within 10 minutes of eating any food containing dairy and/or grease, such as a cheeseburger or pizza.

Every time I eat at McDonald's I get instarrhea.

by Rosco Mishi Yaso June 18, 2008

Instaflaccid

An event causing an erection to become flaccid almost instantly.

That cottage cheese face was an instaflaccid.

by PeteZar33 January 17, 2009

Instagoal

A very easy goal in sports. A goal that should be scored not matter what. A free goal.

"I missed that shot"
"But it was an open net! That was an instagoal!"

by Ronaldo7 February 8, 2009

Instant Zen

LSD.

Dude, Adam brought over some crazy instant zen last night, I'm still trippin'.

by mighty legume April 19, 2009

instabonerific

It's all in the name. Something so goddamn hot you instantly get a boner. Just one look and BOING!

Megan Fox is totally instabonerific!

Susan Boyle is so not instabonerific....

by headbanger32894 August 13, 2009

Instrument Crush

When a person plays a certain instrument you like & they come off 10 times more attractive to you.

Janie wasn't sure if she liked Tom for his looks, his personality or if it was an instrument crush.

by fosterthe-fagg0ts June 28, 2012

Instabrag

The immediate posting of self congratulatory photos on Instagram with the sole intention of inspiring jealousy among followers. Post often includes the phrase "Are you jelly?"

Did you see Mike got sweet new wheels?

How could I miss it? Saw his Instabrag 1st thing.

Dude, sounds like you're jelly!

by cvboom April 8, 2013