FLABBY Meaning of FLABBY in English [flab.by] adj flab.bi.er ; -est [alter. of flappy] (1697) 1: lacking resilience or firmness: flaccid 2: weak and ineffective: feeble -- flab.bi.ly adv -- flab.bi.ness n Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012