Yasmass is someone who has a small brain. Yasmass is commonly used as an insult to someone's intelligence.
"Good thing you're not a Yasmass"
by Mooman12321 December 31, 2012
Get the Yasmass mug.When a group of while girls all YAASSS together, possible killing a nearby pedestrian with a powerful high pitched wave of sound. This would be a yassassination.
Elizabeth, Rachel, and Eve all were responsible for the yassassination of the friendly old man yesterday.
by jay ray June 10, 2015
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he is so yashassu...(he is smart)
by shaemaester June 27, 2019
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