Taintfly 

An elaborate tattoo of a butterfly on an individual’s taint. Unisex in nature, but more mythical on a gentleman. Generally the result of very poor decision making and copious amounts of booze. Traditionally the recipient of a "taintfly" is involved in some sort of bet or dare.

Bro, did homeboy tell you about his taintfly?
No, WTF?
The dude was offered $1K to get a tattoo of a Butterfly on his taint and he did it! His taint is the main body of the Butterfly and the wings spread across his thighs. It is god awful!
Wow! Hope he won the bet!

Taintfly by GilltronZERO November 19, 2010

tainted surface 

The act of rubbing another persons Microsoft Surface tablet on your taint and/or genitalia, usually as a retaliatory joke but sometimes for sexual pleasure. The tablet owners name is usually placed in the middle of the statement.

Man, I just tainted Sean's surface..... At first it was funny, but then it felt good and I couldn't stop myself. Tainted Surface

tainted surface by Notyouraveragemegatron May 23, 2014

Taint-a-licious

The "pleasure" produced by gently stroking the soft supple skin between the anus and the genitals.

Patty that thing you were going around my back side last night was "Taint-a-licious".

Taint-a-licious by kerb-stirer August 8, 2014

i shit trains

To shit trains typically means you are the shit. It can also correlate to being number one at everything. Often times used for upping a Mister One Upper, or someone who has to beat you at every event, activity, or story you've ever encountered.

John: I went to France.
Tim: I went to France 3 times.
John: I SHIT TRAINS NIGGA! NOW WHAT?!

i shit trains by charlievato July 6, 2008

taint pool 

The small pool of sweat that builds up within the taint.

It's so hot my balls are swimming in a taint pool

taint pool by ryelou October 21, 2007

Tain Ride 

Short for 'Mountain Ride'. To drive along a mountain road, smoking Marijuana. It has thought to have originated in Northeast PA.

"Yo man, you wanna go on a tain ride?" "Yeah, let's go grab a blunt and well hit the tain before school"

Tain Ride by Diesel12590 March 24, 2010

taint complaint 

when your taint smells so foul that someone makes a formal complaint to the local authorities.

Man, Martin's taint smelled so bad that Jenny filed a taint complaint to the police department. I think he is serving 5 to 10!

taint complaint by jeeeeeahhhh July 16, 2009