shag lag 

The effects are similar to jet lag, but on this occasion the overwhelming tiredness is owing to a night full of bollock-draining sex. the following day they can't function properly in every sense of the word.

-Fancy coming with us for a kick about this morning?
-Fraid I can't, mate. I just don't have the energy.
-Suffering from Shag lag, eh?... Lucky bugger.

shag lag by Bottom Face April 3, 2011

shag room 

a room where a lot of hooking-up occurs.

At the party I was forced to sleep in the shag room, and the bed gave me herpegonnosyphilaids.

shag room by Nick D April 5, 2003

Shag Rat 

A 'shag rat' is a man who cheats on his girlfriend with other women. If he is the type to frequently play away from home he is known as a 'serial shag rat'.

e.g.

Girl 1: I heard Alana dumped that bloke she was seeing.

Girl 2: Yeah what a tosser he turned out to be a complete shag rat!

Shag Rat by Romany Ravenflame July 5, 2009

shag tag 

A game much beloved of students whereby the ultimate purpose is to end up in bed with a total stranger. As you do. Basically you turn up to the pub and get given a number (all blokes have even numbers and all girls have odds or vice versa). From this relative safety of anonymity you can leave a message up on a board, something of profound intellectual significance like "Number 31 you are really fit" or "fancy a shag Number 25?" Hopefully there will be so much booze going round that sex is inevitable, and you're guaranteed to wake up in the morning feeling slightly disgusted with yourself and quite possibly an STD. Great fun.

I went to that shag tag last night, ended up with the clap.

shag tag by James B June 21, 2004

Shag Bands 

Jelly bracelets that come in many different varieties of colours, if you snap a persons 'shag band' they mean a variety of different things:
Yellow - hug.
Pink - hickey.
Orange/purple - kiss.
Red - lap dance.
Green/blue - oral.
Clear - whatever the other person wants.
Black - sex.
White - flash.

5 shag bands for a quid

Shag Bands by Zib_Zab March 22, 2009

Shag Flag 

A tattoo above a woman's crotch

I could see her shag flag above her low cut jeans

Shag Flag by R800rider October 25, 2008

shag shower 

A shower taken in expectation of having sex. The cleaning performed is more targeted on your junk than a regular shower.

I stopped off for a shag shower on my way to her place.

shag shower by stevejay October 28, 2010