TSUMUGU · TOCFL A2 (est.) · 字
屁
屁 ＝ 尸 ＋ 比
ㄆㄧˋ · pì
noun — a fart, wind; (slang) nonsense
字源 FORM — what the parts do
尸義a body, the lower part
{b,p,f}ITbǐ → pì — the b breathes out to p, tone shifts too
A body (尸) above, 比 below carrying the sound — bǐ breathed out to pì across the {b,p,f} family. The graph names the wind passed from the body: 放屁. From empty wind comes the slang for empty talk: 屁話.
故事 STORY — a scene to remember it by
身子（尸）底下，一股氣（比）噗地放了出來。
From the lower body (尸) a gust (比) escapes with a soft report.
字源記憶法
意 · Meanings
(本義)放屁— to break wind常用
→屁話— nonsense, empty talk
(本義) original meaning · → ⇒ each arrow = one more step of extension