Bear The Fuck Down. Comes from the University of Arizona. Whenever you have to do something hard or difficult, you have hunker down and just get shit done! Aka when finals come, when a football game against a hard team is against us. When you have a paper due in 2 hours that is 10 pages long and you have just written a thesis!
UofA Student1: You know we are about to play against UCLA this weekend
UofA Student2: Yeah the team better BTFD!
Beat the f*** down. Some people get hung up on certain martial arts, then someone that can know how to btfd comes along and makes them a little less cocky. Brazilian fighting vs. karate, or street fighting vs Kumita