Geek slang for "Bros before Hoes". MMORPG players will often throw this as a trump card when you are trying to spend time with your chick instead of raiding.
Duke: Hey Jim, the raid starts at 8:00ET motherfucker, log your ass in!
Jim: Can't make it tonight, I promised Karen I would watch Sense and Sensibility with her this evening.
Examination brethren ( Exam Brethren);
This is a means of supporting colleagues writing exams
It can be in form of cash, foodstuff and kind words of encouragement (which should go with the first two)
Exam brethren is a tradition majorly done in medical school