flap

• n.はばたく、はばたく音; 神経を緊張させる; [空気]エルロン
• vi.はばたく；神経を緊張させる；羽ばたく；（帽子などの）つばを垂らす
• vt.羽ばたく；投げる；つばを引き下げる；ひらひらさせる

子音クラスターflから、ばたつかせる、叩く、擬音語。派生した語彙の意味 flap, etc.

flap (n.)

mid-14c., flappe "a blow, slap, buffet," probably imitative of the sound of striking. Sense of "device for slapping or striking" is from early 15c. Meaning "something that hangs down" is first recorded 1520s, probably from flap (v.). Sense of "motion or noise like a bird's wing" is 1774; meaning "disturbance, noisy tumult" is 1916, British slang.

flap (v.)

early 14c., "dash about, shake, beat (the wings);" later "strike, hit" (mid-14c.); probably ultimately imitative. Meaning "to swing about loosely" is from 1520s. Related: Flapped; flapping.

1. They would flap bath towels from their balconies as they chatted.

彼らはおしゃべりをしているとベランダでバスタオルを振り回します。

2.Why did people get in a flap over nuclear energy？

なぜ人々は原子力に不安を感じているのだろうか。

3.He drew back the tent flap and strode out into the blizzard.

テントのカーテンを開け、吹雪の中に大股で入った。

4.She folded up her letter，licking the envelope flap with relish.

彼女は手紙を折って、封筒の折口を強く舐めた。

5.Nothing to be heard but the soft flap of a silk banner.

しんと静まり返り、絹製の旗がゆらゆらと揺れる音だけがした。