Buttwink 

A buttwink is when a person flexes their anal sphincter, causing their anus to visibly contract, effectively "winking" with their asshole. Buttwinking can be performed as an obscene gesture, or in a sexual context it can be either a sign of affection or a greeting.

To buttwink, simply use the same muscles used to defecate to flex your anus.

This act should not be confused with mooning (merely exposing your anus) since buttwinking is considerably more rude.

As Sensei Doug walked to his dojo, the rude employees of a strip mall store lowered their drawers, pointed their behinds towards the window, and contracted their assholes to buttwink at the passing martial artist.

Buttwink by Sensei Doug December 6, 2017

Buttwink 

When your "brown eye" (also known as an anus hole) contracts, which causes a closing effct. Once the anus hole opens once more its ends the completion of the "buttwink".

Buttwinks often occur when pinching off a turd while taking a dump or during sexual intercourse (when climaxing for both sexes).

I had to buttwink to pinch off that turd

Dude!, I was having sex with this hot chick last night and she buttwinked when she orgasmed, thats when I decided to try anal.

Buttwink by Blackrose86 January 20, 2011

buttwink 

The feeling that occurs immediatly following an extra large shit, when your butthole contracts as a result of the 2x4 that was just pushed through your 0-ring.

Man, you should have seen that turd. My butthole is still winking ;0

buttwink by Long-log-man December 21, 2004

buttwink 

some crappy word from balderdash, for which i cannot remember the correct definition.

define buttwink, please.

buttwink by andrea December 19, 2004

bugtwink 

A "bugtwink" is any effeminate korean male, typically spammed by adolescent sexually confused overweight k-stans on their tenth twitter handle. The "bug" portion in relation to them all looking alike.

"She came out as lesbian, heavy onset bugtwink obsession prior."

bugtwink by greaselfrompapasfootsoakings December 21, 2020

Buttwings 

Buttwings are small wings that can be found on the rear-end (butt) of something; they are generally found on non-existent things like Victini and anything that's free to buy.

Victini has a pretty prominent, but small pair of Buttwings that allow it to fly around and cheat the laws of physics.

Buttwings by Mynamedoesnotmatterinanyway January 11, 2012

buttwank 

putting your manhood between the cheeks of a girl with a big ass and goin for it, similar to a tit wank but with a butt

alex didnt want anal but allowed tom to give him a buttwank

buttwank by harrygg November 17, 2006