An extremely violent sexual act involving smacking and headbanging
"Wanna come back to my place, have a few drinks and pass the mash"
by Liceman4444! June 28, 2017
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To depart.
THis place is wack, let's mash!
by TRk-mGNT May 25, 2003
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To carelessly destroy something in the past tense.

A way to prepare potatoes.
Did you see that apartment when Ted moved out? It was MASHED!

Did you see the way Ted made that potato? It was MASHED!
by JenThe80'sFan February 3, 2004
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When people are low on pot and they collectively pack one bowl so they can all get high.
Yo I got next to nothin- wanna mash a bowl and get stony?
by QUIJ July 17, 2005
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To apply violence to another person in an attempt to reduce them to the consistency of whipped potato (See also Mashed potato.)
The song "Mash up Tony Blair" is used today in much the same way as the chant "Maggie, Maggie, Maggie. Out! Out! Out!" was used in the 1980s, although is not so popular.
by Flame August 31, 2003
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you know its goin down if i let u mash wit me
by MiZz B August 21, 2003
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The state of mind you're in after smoking a marijuana ciggerette which has been mixed with a crushed up pill of ecstasy.
Man I was so mashed my brain felt like it was going to jump out of my head.
by John Calvert May 27, 2005
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