Ф4

HE ФАСОН (HE МОДЕЛЬ) (кому) obs, substandNPthese forms onlysubj-compl with бытье ( subj: usu. infin, a clause, or это)) sth. (or doing sth. ) is not suitable, proper, good: (X-y) делать Y не фасон - X shouldn't do YY is not the thing to doit's not (it wouldn't be) right (for X) to do Y.