Definitions by Yo,

GDB 

Gross domestic bitch

That gdb cheated on my friend while drinking Starbucks!

GDB by Yo, June 13, 2020

HB 

How ‘bout; How about

A-Yo, wanna hang out
B-Sure, hb next weekend
A-👍🏻

HB by Yo, October 21, 2018