Insta-boner

Something/someone/ some action so intensely attractive the viewer immediately has an erection.

dude, when i saw that picture i got a mega Insta-boner

Insta-boner by uhohspgettioh March 11, 2009

insta-boner

A boner that is aquired instantly

When Dylan saw that picture of a naked man, he got an "insta-boner"

insta-boner by Alex M November 1, 2006

Insta-boner

A stiffy obtained merely from seeing a bangin chick.

Phil: "Dude, Denise gave me such an insta-boner last night!"
Connor: "Dude thats my mom!"

Insta-boner by Aakash P December 27, 2011

Insta-Boner

Something EXTREMELY that gives guys boners the second they see it.

"We're so hot, we're totally insta-boners."

"Dude, have you seen Taylor? She's a total insta-boner."

Insta-Boner by dianaandsavvy December 5, 2012

Insta-boner

When you get hard instantly. There us no gradual hardening. Instantaneous hardening. (usually rips pants)

Dude! She was so hot she gave me an insta-boner!

Insta-boner by Dick Guzzler July 18, 2016

Insta-boner

When you get turned on so fast that your dick gets hard quicker than it can rearrange itself in your pants. Usually requires manual adjustment and is accompanied by drool and the inability to make rational decisions as lack of blood leaves your brain in a stupor.

Friend: “yo! Dude! Fix yourself! You got an insta-boner.”
Me: *babbles incoherently*
Friend: “Emily walked by, didn’t she?”
Me: “random jibberish* *fixes junk*

Insta-boner by Fetch Stick August 25, 2018

Insta boner 

The boner you get immediately after someone or something turns you on

Girl: Hey, I just want to say that I like you
Boy: You do?
Girl: Yes I do... wait what’s that on your pants?
Boy: Oh sorry that’s just my insta boner

Insta boner by AwwYeaGuurrll May 22, 2019