(medicine) Abbreviation of atrial fibrillation; also a-fib.

(medicine) Abbreviation of atrial fibrillation; also A-fib.

present participle of fib

(informal) The telling of a lie. / (archaic, boxing) Repeatedly striking an opponent's head while holding them in a headlock; a pummelling; a drubbing; a beating.

(neologism) A kind of experimental poem where the number of syllables in each line is the next succeeding Fibonacci number.

(informal, intransitive) To lie, especially more or less inconsequentially.

(medicine, informal) The fibula.

(informal) A lie, especially one that is more or less inconsequential. / (informal, rare) A liar.

(archaic, thieves' cant, boxing) To punch, especially a series of punches in rapid succession; to beat; to hit; to strike.

plural of a-fib