(old slang) (figurative) 1. Knuckle (of a hand) (this refers to an old slang; "食菱角" (of physical punishment) Hit someone's head with the knuckle of a hand)
Definitions (Wiktionary)
noun
water caltrop
noun, Taishanese
spinning top
name
Lingjiao (a town in Wuxi, Chongqing, China, formerly a township)
Definitions (Kaifangcidian)
(沒有對應漢語詞彙)
菱角 [--]
Jyutping
ling4 gok3
Pinyin
líng jiao
Definitions (CC-CEDICT)
water caltrop (Trapa species), aquatic plant with edible seeds