assinitis 

a term for someone who has their own head stuck up
their own ass as far as their shoulders.

someone who does very dumb shit and is happy/ when one trades a several hundred dollar tool for a

fifty dollar piece of shit and thinks he got a good deal

he has a bad case of assinitis

that guy really has head up his ass

assinitis by fuckdome February 18, 2011

Assinaise

Using Mayonaise in place of lubricant

Where's the lube? Gotta go to the fridge and use the next best thing - Mayonaise

Mayonaise + Lube = Assinaise

Assinaise by Astam Outh August 19, 2009

Assinity 

1. (n.) Virginity of the anus.

Her preference was traditional intercourse, so as to keep her assinity intact.

Dude, I totally took her assinity last night.

I wanted to save myself for marriage, yet to enjoy pleasures of the flesh; ergo, I lost my assinity instead.

Assinity by tred69 September 8, 2009

assritis 

arthritis of the ass (i.e. the tailbone).
quite literally a pain in the ass.

My assritis is acting up from sitting on this hard chair all day.

assritis by txblueyes April 19, 2011

Assinite 

the act of being an asshole, rude and or obnoxious.

Dude just cut me off in traffic! Assinite!

Assinite by Bamarama March 21, 2010

ASSINOSIS

The disease that causes someone to be a constant asshole

My wife has assinosis!

ASSINOSIS by JPS66 February 15, 2007

Assination

The sporting of or having a great butt.

Student: Dang! Did you just see her?
Teacher: Hell yeah I did, she had assination going on down there.
Student: True dat.

McP: She was equipped with mad assination.
Student T: *looks over* DAYUM! Nice snipe, you assassinated that thing.
McP: That thing is on FIAR!!!!!

Assination by 30 dollar million Tim October 5, 2010