1. kiss up (usually used in a work-related context)
Stop trying to kiss up to the boss by buying her coffee every morning. I happen to know she prefers tea.
2. suck up (more general in use)
Woefully unaware of his teacher’s apple-related allergies, the boy tried to suck up to her by bringing her an apple pie. Worse still, there was no vanilla ice cream involved!
1. brownnoser / brown-nosing
Gina is such a brownnoser—I caught her complimenting the boss on his toenails this morning.
2. ass kisser / ass kissing
Jeff’s ass kissing is really getting out of hand—he was composing a poem about the professor’s voice in class earlier.
*Note: ass kissing should not be confused with ass kicking. Big, big difference!
註：「ass kissing」不應與「ass kicking」（教訓）混為一談。兩者可是天差地遠！