摔打

摔打	shuāi da	to knock / to grasp sth in the hand and beat it / to toughen oneself up
摔	shuāi	to throw down / to fall / to drop and break
打	dá	(loanword) dozen / Taiwan pr. [da3]
打	dǎ	a semantically light, transitive verb that is combined with various grammatical objects to form compound verbs and verb-object phrases with a diverse range of meanings (e.g. 打伞 "to hold an umbrella", 打电话 "to make a phone call", 打针 "to get an injection", 打手套 "to knit gloves", 打气 "to inflate") / to hit; to strike / to fight / (coll.) from; since (as in 打那以后 "since then")