Deadass 

A slang for serious to be used in any scenario;

"hey, did you hear my boy deadass clapped them cheeks at the party last night?"

Deadass by CloutBoiDeadassB October 8, 2017

Deadset 

100% sure of it. Without a doubt. This slang is mostly used in Australia.

Babe Ruth is a deadset legend.

Deadset by Puzant December 9, 2003

deaysia 

A boss ass bitch who don't give 2 fucks about what people say. Don't like fake people and smexy

Deaysia is a boss ass bitch

deaysia by Littgirl20 June 18, 2018

Deadass B 

Basically a new yorkers way of saying " for real" or " I swear to god"

Guy 1: Yo I just copped these new timbs dog
Guy 2: Deadass b?
Guy 1: Deadass

Deadass B by Typicalnewyorkfag December 11, 2016

deadshit 

Someone who is so stupid it makes you want to stab your eyes so you never have to look at them again

How much of a deadshit is that pie eater over there?

deadshit by Signor Deadshit June 26, 2006

Deadass 

Completely serious.

"Yo, I hooked up with Rebecca last night!"
"No way!"
"I'm deadass."

Deadass by AGentlyUsedCondom December 16, 2015

Deadshit 

In Australian speech deadshit is used for someone who is the lowest of the low. You can call your friend a bastard, fuckwit or cunt if you are momentarily mad at them, and it puts them on notice that you are not amused, but if you call them a deadshit , then the relationship is pretty much over. It signifies a line has been crossed.

You're a complete deadshit, Malcolm.

Deadshit by Affabeck Lauder September 22, 2017