by Walknchew June 9, 2022
BTR, also known as Big Titty Raena. This midget with huge double D titties is nuts and known for her craziness by the amount of things she will do just by winning her in a game of cup pong.
by Rooster808 June 17, 2017
Short for Big Time Rush believers, these are people who are based and know that Big Time Rush only put out bangers and anyone who disagrees isn't a believer.
These guys are BTR Believers, they're based.
by Haxor48 March 10, 2021