brown-nose
verb [ I ] informal uk/ˈbraʊn.nəʊz/ us/ˈbraʊn.noʊz/
拍马屁
to try too hard to please someone, especially someone in a position of authority, in a way that other people find unpleasant
The rest of the class were sick of watching him brown-nose. 班里的其他人讨厌看他拍马屁的样子。