to act very suspect or suspicious; to act like a creeper
Carol:What is Mr. Moniaci doing over there?
Nicole: I don't know but I think he's staring at us.
Carol:Mad sus . . .
by crazychica82 March 6, 2010
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to be very suspicious like over-the-top suspicious
Maddy: what is Mr. Harris doing over there?
Abby: idk but he looking mad sus
by your everyday hoe March 27, 2020
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When somebody acts super gay, such as being a little bitch and not knowing how to handle something.
by Bimbo69 March 3, 2019
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mad sus, middle aged boys would use it alot to random people. and its extremely annoying.
mad sus
by stan loona mf March 5, 2021
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Wow. This refers to the heinous act you just committed willfully and once this has been said, you look back in retrospect and contemplate for a period of time about what you just did/said and realize that it was unnecessary and honestly pretty fuckin sus bro.

I mean I don't know about you, but from my perspective if I did/said that I honestly would have to reconsider my sexuality considering all the possibilities, because I mean they are theoretically endless after hearing what I/you just did/said.
"Mane, Das mad sus g, please reconsider what you just said as I quite frankly do NOT appreciate how sus that is. You might have to get voted off."
by Insyndrome_v2 November 10, 2020
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