Entry 2 senses · 2 variants Webster, 1913 Flip-flap · Flip·-flap · IPA /flɪp.flæp/ n. adv. 01 n. The repeated stroke of something long and loose. 1. The repeated stroke of something long and loose. 02 adv. With repeated strokes and noise, as of something long and loose. 1. With repeated strokes and noise, as of something long and loose.