Kiss ass

American Slang

Definition

To ingratiate oneself with excessive flattery—especially toward someone in authority—to gain favor; also, a sycophant who does this.

Examples

"He’s always kissing ass to the manager, hoping it’ll land him a promotion."

"Don’t try to kiss ass with the professor; just do the work and you’ll be fine."

"Everyone knows Tyler’s a total kiss-ass who flatters the boss to stay on her good side."