shirtgun 

A phrase most commonly used in a modification of the game Half-Life called Natural-Selection (www.natural-selection.org). Undoubtedly a purposeful misspelling, a shirtgun is actually referring to the shotgun contained within in the game. The term "shirtgun" was was found (or created, either is possible) and used usually in combination with other misspellings.

Omgz!11oneone Tehre is a lork on teh clorf! Commandar! We need teh shirtguns!

shirtgun by Stephen M April 28, 2004

Shitgun

'Shitgun' can be called by one person out of more than one people that need a dump, and are faced with one toilet.

Adam: 'Christ, I need a shit, i'm touching cloth. As soon as we get home, im in there'

Joe: 'Bad luck bro, I already called shitgun on yo ass. Suffer!'

Shitgun by Drzygote June 21, 2007

Shitgun

Called immediately after someone calls "shotgun". Rather than getting the front passenger seat right away, you get it on the way home instead.

"Alright guys, let's get in the car."

"Shotgun!"

"Oh man... Uuhhh... 'Shitgun!'"

"Ok you get the front seat on the way there and you get it on the way back."

Shitgun by Chase Cheffe May 26, 2009

shartgun 

When you have gassy diarrhea and spray a shotgun like pattern of shit all over the toilet walls.

I shartgunned my mom's toilet the other day when I had some bad diarrhea from eating at Pancho's.

shartgun by Ched Daily July 22, 2014

shirtcunting

to wear a shirt and no pants, ie, shirt and a cunt.

Julie was shirtcunting at the tail-gater last night. What a ho!

shirtcunting by dimemachine August 8, 2010

shitgun snip 

What a player does in Battlefield: Bad Company 2 when they select a shotgun, preferably the Neostead 2000 combat, and select the 12 Gauge Slugs specialization and runs around rooftops or in buildings safe from harm and is able to snipe other players from a distance as if he had a "shotgun sniper".

Player1: SHIT! How the hell is that medic able to kill me from the top of the building when I was behind cover and across the street! Thats bullshit!

Player2: The shotgun is ridculous! You can shitgun snip!

shitgun snip by Onslauqht August 10, 2010

Shirtgina 

If a particulary large-breasted woman wears a button-up shirt too small for her bosom and still insists on buttoning all the buttons, a shirtgina occurs; it is the gap between two straining buttons over the front-most swell of the breasts. The gap is akin to the shape of a woman's vagina and if no undershirt is worn, the gap gives a peek into the world of cleavage beneath.

Person 1: Dude! Did you see that girl's boobs?
Person 2: Yeah. That button-up was too small. She totally had a shirtgina goin' on!

Shirtgina by soulfulgray March 20, 2009