贼头贼脑 zéitóuzéinǎo furtive Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 看那厮贼头贼脑,准没干好事。 kàn nà sī zéitóuzéinǎo, zhǔn méi gàn hǎoshì. Look at that fellow acting all sneaky; he's definitely up to no good. Source: Dong Chinese Dictionary