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the combination of kool, neat and swell.
hey i just bought a new porsche. omg youre so shash.
shash by john bosco May 27, 2004
Related Words
To talk Shash is when one starts talking absolute bollocks when trying to make themselves look good, they can also use this as a joke.
Jon- I punted a cow into orbit
Jon2- Fuck off stop talking shash
Shash by Yokov February 7, 2019
Twaddle, rot, falsehood, or general nonsense.

Synonym to 'bullocks'.
John said that he knew how to fly a jet fighter, but everyone knew that was complete and utter shash.
shash by Robert Llewyllen July 7, 2006
Shash is an insult used when calling someone shit and trash at the same time.
"I look like shash today."
Shash by Bloody nutsacks April 4, 2020
Verb- To tamper, bash, or damage something to the point that it no longer follows a law/laws of physics.
Originates from the word smash
You can make a magnet no longer magnetize by shashing it.

I shashed the TV and now it no longer obeys gravity.

Perhaps if we shash cars, then they will no longer maintain inertia and will cause less deaths in accidents.
Shash by Dawildman October 13, 2014
a mixture of the words "shit" and "trash"

like "Shitty Trash" which naturally becomes "shash."

It's an orignal composition by me and Lunchbox.
shash by Woody January 27, 2005