A term David Dobrik and his close friends from Vernon Hills, including Ilya, use as an alternative to "swear to god".
David: *heugh heugh heugh* (mimicking how a clown laughs at the start of every sentence), deadass? you're gonna let me watch you have sex?
Ilya: *heugh heugh* (tries to mimic David's laugh but fails terribly and uses his thumb to touch the tip of his nose and act all suave and slick while bobbing his head back and forth not realising his bff manipulated him), yeah *heugh*, deadass man.
by b99lover September 8, 2020
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Serious/seriously

Alleged origin: Borough of Brooklyn, NYC.
'Did he deadass wear that shirt for the party?'
'He seriously did.'

'I can't believe you're breaking up with me! Are you serious???'
'I'm deadass.'
by Knowledge Incarnate December 2, 2019
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When someone is painfully stupid and has near to no life prospects.
Person 1: Hey, why are you getting annoyed at me

Person 2: Because you a deadass
by divine.solace November 17, 2016
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guy one: yo that zombie over there looking Deadass
guy 2: goddammit, what did i tell you about your necrophilia
by Dom fuckin dies January 26, 2020
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1. A donkey that has tragically passed away
2. The kool way of saying "seriously"
Person: Please help me I get turned on by dead people.
Therapist: Deadass?
by seogenis November 24, 2019
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equivalent to saying: for real; im serious; telling the truth.
peep 1: you robbed his bike? ...naahhh..
peep 2:im dead ass.
by chimpy August 28, 2004
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deadass means you serious like you not playin around .
corey: bruh imma deadass slap tf outta you

james: you ain finna do shitt
by jhittt85 May 22, 2020
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