踩奶

踩奶	cǎi nǎi	(of a cat) to knead (by rhythmically pushing with its front paws)
踩	cǎi	variant of 踩
踩	cǎi	to step on / to tread / to stamp / to press a pedal / to pedal (a bike) / (online) to downvote
奶	nǎi	breast / milk / to breastfeed
奶	nǎi	variant of 奶
奶	nǎi	mother / variant of 奶