The knotty mess of hair at the back of a woman's head caused by being rubbed against the pillow during sex, or from her hair being grabbed by her partner during doggy-style sex.
'Ohh look at the state of Julie's hair. That shag-knot tells us what she was up to before she came into work today!'

'Sort your hair out Elaine. You've still got a shag-knot going on'
by Sidders02 March 8, 2021
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shag = screw aka screw your imaginary gf who is actually an anime character with big tiddies
so basically screw a dog
and say when ur bored or out of context
or maybe sarcasm
friend 1 = 'hey its time to wake up!'
me = 'no its time to shag the dog'
by cupcacatoesbakaguo January 4, 2022
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a rodeo shag is where the girl is on top and she is bouncing away then you say her sister or brothers name and see how long you can hold on
stunt shag or rodeo shag
by asswipe121 December 30, 2010
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Shagging with 9/11. U get it u get it. U dont , u dont. That's how life be sometimes 🤷🏼 ♀️
Archie does not compute🤣 shagging with 9/11
by Jessc1122 December 5, 2019
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when you meet someone, have sex with them and leave straight after the sex is finished.
michael: yo how was yesterday!
me: i met this girl we shagged and then i dashed!

mum: i hope you have never shagged and dashed anyone!!!
by topshagger12345678 April 12, 2022
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Loose, baggy, and often old pants without buttons, zippers, or belt loops. They are worn to be easily taken off, or at least to allow easy fingering/hand jobs.
Babe, your mom is downstairs. Go put on some shag pants and let's "watch" a movie.
by sidewalks February 3, 2015
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