grunson 

the indididual lines or wrinkles that circle your anus.

Marie let me poke her grunson last night.

grunson by jozy7 October 13, 2008

Grunion Patch 

When one's grundle becomes sweaty and takes on a vinegar and oniony type smell. Not easily masked and very noticeable even though clothing. Transfers easily to the fingers and under the nail when itchy and scratched.

Is someone here eating pickled onions? That's very pungent.

Sorry no. It's my grunion patch. I have been working in the yard and sweating all day. Here, is this what you smell ( scratches grundle and then puts finger under nose).

Good goards man that's f***ing ripe. Go shower now and scrub that hand.

Grunion Patch by Eaton Holgoode January 18, 2016

gunson 

A term used to describe when a call of duty player completely destroys an enemy with flawless shots

Damn boy you clutched up and gave him that hot gunson

gunson by gunsongod69 August 23, 2016

Grunyon 

The Grunyon is a mythical late-night after-party spot located somewhere in Chicago, Il. Only reachable in the extreme stages of a hard brownout or blackout stupor, patrons of the Grunyon are hard-pressed to recall concrete details, but always report continued heavy drinking, cigarettes and Mexican food.

Q: What happened to you last night after the bar closed? We all left and you disappeared?

A: I went to the Grunyon.

Grunyon by bworlick June 11, 2006

Grunion 

Grunion (noun): a slut. Terminology inspired by a type of fish that reproduces by getting jizzed on in a hole in the sand.

Guy 1: "She's kinda cute."
Guy 2: "Don't do it bro. That girl is a grunion."

Grunion by tspam752 September 26, 2017

Grundong 

When one shows clear and expressive frustration after having lost something of clear importance or meaning.

“Wow Sam seems a little angry”
“Don’t worry he’s just having a Grundong

Grundong by Jarodym January 19, 2020

Grunion style 

A style of sex where people flop around on the bed, floor, beach, and on top of each other like a bunch of grunion fish. They proceed to ejaculate all over each other and all over the room with their bodily fluids.

My girlfriend and I always wanted to have sex on the beach and when we got there she wanted to try grunion style so we got naked and started flopping on top of each other. I busted so hard like a fountain and the semen covered us both.

Grunion style by FishSexer March 30, 2009