A bulimic Russian girl who hooks up with guys before cleaning out her mouth or drinking some water. A Drobyshev is so crass as to commit this atrocity yet feels no remorse for the victim (a guy in most cases).
Dude! Did you just hook up with a Drobyshev? That's gross, you most be desperate.
Rob: Jon, why are you brushing your teeth? I've never seen you brush your teeth?
Jon: Rob dog, you'll never believed what happened to me last night. I fell for a Drobyshev.