一股脑儿 Traditional form: 一股腦兒 Pinyin (reading): yīgǔnǎor Definitions: erhua variant of 一股腦/一股脑 (yīgǔnǎo) Characters: 一 - one; a, an; alone 股 - share, portion; thighs, haunches, rump 脑 - brain 儿 - son, child Traditional characters: 一 - one; a, an; alone 股 - share, portion; thighs, haunches, rump 腦 - brain 兒 - son, child