Definition

East Coast slang that's short for 'dead ass serious,' used to emphasize that you're being completely honest or to express strong agreement. Born in New York street culture, it migrated across the country and internet like a linguistic virus, often paired with 'B' or 'son' for maximum authenticity. If you're not from the tri-state area and using it, prepare to be judged accordingly.

Example Usage

Deadass, I waited two hours for that sneaker drop and they sold out in 30 seconds.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=DEADASS&defid=16444953)