igbhwy

I Gonna Be Honest With You. It is similar with TBH.

A: Hello, what are you doing?
B: I am watching Dhar Mann.
A: igbhwy, i don't know who is Dhar Mann.

I don't wear a cap

Basically means "no cap", "I am not lying".

A: I live in a bungalow.
B: nah, cap.
A: I don't wear a cap.