OTBC
One touch ban and clean. A function in forum software to close/ban an user account and delete all posts. Most commonly used on trolls and spammers.
Spam post was reported and the moderator OTBC'ed.
otbc
Short for "On The Ball City!" primarily used in football chatrooms in reference to Norwich City Football Club's anthem, though to be the world's oldest (and subjectively best) football song still in use today.
NCFC Chatroom:
YellaCanary08: "That last game was rubbish, when are we going to buy a proper striker? OTBC!"
BlueScummer69: "I wish I lived in a city."
YellaCanary08: "That last game was rubbish, when are we going to buy a proper striker? OTBC!"
BlueScummer69: "I wish I lived in a city."