엉? 그 X말고 누가 또 X같이 굴어? mean "Hah? who is someone doing like this asshole ?" 그 X 말고 =" 그 새끼 말고" = "not this asshole" X같이 굴어 = "behave bad"

엉? 그 X 말고 누가 또 X같이 굴어? may be interpreted in two ways. 1. What? There's another one X-ing besides that X? 2. What? Who's X-ing again other than that X? (The intonation will clearly distinguish them, but I would say #1 is more likely in general.) * X 말고 = besides X; other than X. * X같이 굴다 = act like X = X (as a verb).