蚂蚁腰 Traditional form: 螞蟻腰 Pinyin (reading): mǎyǐyāo Definitions: (coll.) tiny waist Characters: 蚂 - ant; leech 蚁 - ant 腰 - waist, lower back; middle; pocket Traditional characters: 螞 - ant; leech 蟻 - ant 腰 - waist, lower back; middle; pocket