З187
НИ В ЗУБ НОГОЙ (в чём, по чему)НИ В ЗУБ (ТОЛКНУТЬ) all
highly collPrepPthese forms onlypredic
subj:
humanfixed WO one knows, understands etc absolutely nothing (about sth. ): в Y-e X ни в зуб ногой = X doesn't know beans (the first thing, a damn thing) about Y
Y is a closed book to X.