어서 치우다

go and clear it up

An "-아서/-어서" clause naming the way or the trip, plus 치우다 "clear away, tidy up". Most lines pair going with cleaning: I have to go and clean it up, they'd come and clear the bedbugs out, taking a stack of coffee cups away after two or three days, they come and do the clearing. One is a joke — 먹어서 치우다, clear it up by eating it, into my stomach. 몰아서 치우다 is letting it pile up and doing it all at once.