To be on your phone during a party, conversation, sports event, or other place where it is inappropriate or antisocial.
"Yeah, we all went out to dinner for my birthday but everyone was just crassing."
by djnarnz August 10, 2013
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having such grossness of mind
God, Ryn you're so fukin' crass
by K Stuart October 15, 2003
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An adjective used to describe a person or thing which is blunt, vulgar or thoughtless.
It is commonly pronounced "krass", rhyming with "mass".
Pharmacy Student 1: "This gel is strange, it looks a bit like..."
Pharmacy Student 2: "Like snot!"
Professor:(sarcastically) "I'm glad I get to teach such crass students"
by Ciphs October 16, 2007
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a good old punk band
crass is a good band not a shitty one like all you other people say
by troy November 8, 2003
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punk band from the 70's in england. thought to be the originaters of anarchy in punk.
by Chris September 16, 2004
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Typically meaning drunk or high to the point of not being able to carry out, any productive thoughts whatsoever.
“Dude I’m fucken crassed.”

Holy shit dude bills fucken crassed dude.”
by Dr, battersbee June 28, 2019
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