LECH Meaning of LECH in English v. & n. colloq. v.intr. feel lecherous; behave lustfully. n. 1 a strong desire, esp. sexual. 2 a lecher. [ back-form. f. LECHER: (n.) perh. f. letch longing ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012