Definitions by Im OBC Yo

TBC 

It means Turbo Builders Club in Roblox, it's also the second-highest Builder ppl in Roblox.

DanTDM: hey dude wanna check out mah BC?
Spectre2.0: No need u better check out mine first dude.
DanTDM: OMG! ur so rich! u got TBC?!
Spectre2.0: yep
DanTDM: I wish i had that too but... i just want to save some money for mah robux
Spectre2.0: no wonder u got moar robux than meh in the moment...
Me: XD I HAVE NONE BC TBCOR OBC AT ALLLLLLLL! TROLOLOLOLOLOLOLOLOLOLOLOLOLOL

TBC by Im OBC Yo January 2, 2018

OBC 

OBC means Outrageous Builders Club in Roblox, which is the highest level Builder ppl in the game. Whoever bought it is totally super rich.

Robloxian1: Hey, check it out. I got BC!
Robloxian2: Well... check me out , I got OBC dude!
Robloxian1: OMG! You must be super rich yo!

OBC by Im OBC Yo January 2, 2018