Sidepiping 

When a very attractive girl makes you journey down the left or right side of your pant leg. In other words she causes you to become erect down your pants which can be embarrassing and even painful if wearing tight jeans.

COLIN: OOOOO Im Sidepiping... three o'clock!
JOHN: Oh yah i see her. She's a beut'!
COLIN: Son of a... this hurts.
JOHN: Dude! Your bursting at the seams. shouldn't have worn those tight jeans. Stop shopping at Ed Hardy.

Sidepiping by You Got REAMed February 15, 2010

side piping 

what becomes of a peenee in pants that are too tight.

cederic: jeez omar, your side piping is ridiculous.

omar: um, cedric, i know you've eaten a lot of shrooms but you're package isn't looking so discreet these days either.

side piping by 9irl May 2, 2006

Side Piping 

Side Piping (Side-Pipe-Ing) - is:

1. When a man or a chick with a strap-on is fucking a man or tranny in the ass from behind (doggy style).

2. The person in the aft position grabs the other persons dick, pulls it back to where it is between the legs of the two people fucking.

3. Starts to jerk it off in the open space available. Being that the only available space in this fucking condition is to either side it is called Side Piping.

Dude - I was Side Piping that Thai tranny hooker while I was nailing her ass and that bitch blew a load on the coffee table and now we got jizz on the TV remote.

Tranny to tranny friends - That dude bent my dick around behind my leg and jerked it off while he nailed my ass. He made me cum but I think we should charge extra for Side Piping!

Side Piping by Side Pipes October 6, 2011

side-piping 

When a fellater moves to a side position on the cock to avoid getting a mouthful of jizz. see also "harmonicock"

She was not a lover of spunk but did not want to disappoint her lover, so she used the side-piping technique to take him across the finish line.

side-piping by jpsidepipe October 5, 2010

Sidelining 

The act of presenting oneself uninvitedly onto the sidelines of a crowded sports arena, while confidently and courageously avoiding any confrontation from security and/or unruly spectators. To achieve perfection in sidelining, once must present a photograph of said act as evidence that there are no signs of pursuit from the authorities.

Michael was banned from the Georgia Dome for three years after sidelining during the football game.

Sidelining by Stinky September 2, 2014