게 굴다

behave a certain way toward people

굴다 never appears alone — it always takes a manner word in front, and it describes how you are treating other people. In these lines it is almost always something unflattering: 싸가지 없게 굴다 'be rude', 못됐게 굴다 'be mean', 뻣뻣하게 굴다 'be stiff', 맹랑하게 굴다 'be cheeky'. Twice it shows up in the telling-off shape -게 굴지 마: 찌질하게 굴지 말고 'don't be pathetic about it'. 행동하다 also means 'behave', but it is neutral and descriptive; 굴다 passes judgement.

Register: blunt and casual; often scolding