Dat boi

Dat Boi, a colloquial pronunciation of “that boy,” is a nickname given to a 3D character model of a green frog riding a unicycle, typically accompanied by catchphrases like "here comes dat boi!" and "o shit waddup," that went viral on social media in early 2016.
source- knowyourmeme.com

Me: Oh here come dat boi!
Dat boi: o shit waddup!?

Dat Boi

dat Boi be thicc walking to the beach rollin down the streets

Dat boi

yes

Dat Boi

A dope ass Bitch, you see dis boi coming he hit you with that dab then beat Your ass

Here comes dat boi oh shit whaddap.

dat boi

dead meme that people still use for some unknown reason.
please dont use dat boi after reading this.

person a: hey, have you seen the dat boi meme?

person b: we can't be friends. that meme is deceased.

dat boi

the meaning of my existance

guy 1: i like dat boi
guy 2: dat boi is dead
guy 1: well now you dead to me!

very special little boy

A dream stan or a nigga who uses mega knight in the popular game clash royale.

"you're a dream stan? you must be a very special little boy."

band boy

Band boy very similar to a "emo boy" often including the dark layered hair going to the left or right, tight black skinny jeans but with a band shirt or sweater and their wrists containing lots of band bracelets

Guy 1: "wow bro you look like such a emo boy"
Guy2:"damn it I wanted to look more like a band boy time to go back to hottopic and buy some more band bracelets"