刮蹭

刮蹭	guā cèng	(esp. of a vehicle) to scrape against; to sideswipe
刮	guā	to scrape / to blow / to shave / to plunder / to extort
刮	guā	to blow (of the wind)
蹭	cèng	to rub against / to walk slowly / (coll.) to freeload