1. variant of flappy, which is recorded in the sense of "softly fleshy" from 1590s; see flap.
2. 为什么从 flap 到 flappy 会变成 “softly fleshy”之意呢？因为只有柔软的、松软的、有柔性的翅膀才容易拍动，拍动的效果也才更好，其二，正因为翅膀的这种特性，翅膀也就会下垂，因此也就引申出了：下垂的、松垂的等含义。

1. My bulging thighs and flabby stomach made me depressed.

我大腿太粗，肚子上也净是赘肉，让我很发愁。

来自柯林斯例句

2. You hear talk about American business being flabby.

你会听到有关美国经济发展无序、后劲乏力的议论。

来自柯林斯例句

3. He isn't just fat, he's flabby.

他不光是肥胖, 而且肌肉松弛.

来自《现代汉英综合大词典》

4. His eyes were not keen, his face marked, his hands flabby.

他目光呆滞, 满脸皱纹, 双手无力.

来自英汉文学 - 嘉莉妹妹

5. Soon he became a weak and flabby old man.

他马上变成一个非常衰败的软弱的入了.

来自汉英文学 - 散文英译