some one who is almost alway there when you drink, and if you are drinking and they are there they have to drink. it is the drinking buddy rule. usually someone that you trust and you don't mind making a full of your self in front of. a friend you can count on to get just as drunk as you and make amazing memories with.(DB is short for drinking buddy)
ricky is my DB and he is the best drinking buddy because he drinks even when he dosent want to.Just because i am.