nahhh

Use to express shockingness.

nahhh bro actually thinks that the earth is flat

king's gambit

A gambit where you sack your king.

Person 1:Dude you can't take my rook with your king, it's protected by the queen
Person 2:Bro it's king's gambit, how do you not know that

jklm bomb party

The game in jklm.fun where people type 20+ letter long words just flex on people.

Person 1:Wanna play some jklm bomb party
Person 2: Nah, people just tryhard on this game, you can't even win if you have a life.