Summer Shag 

Long hair from not getting a haircut during summer break.

Looks like everyone got a haircut over fall break. They got rid of their summer shag.

Summer Shag by AtomBoiler October 13, 2011

warmth shag 

An episode of sexual activity used primarily for self-preservation in a cold climate.

John had originally planned a non-stop hike through Sweden. Unfortunately, the temperature plummeted dramatically and he was forced to stop for a quick warmth shag.

warmth shag by Abanazar January 6, 2012

Safety Shag 

Anal Sex with a woman.
In reference to the second worst STD; unwanted pregnancy,

This method is somewhat more safe than risking children

Woman "have you got any condoms"

Man "No, its alright; we'll have a safety shag"

Safety Shag by Vikingtesticles September 23, 2012

stealth shag 

Having sex silently, so as to avoid causing irreparable emotional trauma to their children.

My parents don't stealth shag. I wish I was deaf.

stealth shag by Something Amusing October 26, 2013

Caddy Shag 

When you actually have sexual intercourse on top of a golfer on a golf course.

"Hey Annie! See that golfer over there about to tee off on the 9th hole? I want to Caddy Shag you so hard right on top of him! You down?"

Caddy Shag by UtahUtes044 April 3, 2015

bumber shag 

Grabbing onto a vehicle bumber with snow on a street to catch a ride.

Lets bumber shag some cars when they stop at that lisght.

bumber shag by Bumbershagger December 16, 2016

beef shag 

Meaty love

Woah man Nicole is great at beef shags!

beef shag by Nicolebish April 2, 2017