FIB Meaning of FIB in English n. & v.n. a trivial or venial lie. v.intr. (fibbed, fibbing) tell a fib. fibber n. fibster n.[ perh. f. obs. fible-fable nonsense, redupl. of FABLE ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012