OAF Meaning of OAF in English [oaf] n, pl oafs [of Scand origin; akin to ON alfr elf--more at elf] (1625) 1: a stupid person: boob 2: a big clumsy slow-witted person -- oaf.ish adj -- oaf.ish.ly adv -- oaf.ish.ness n Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012