on someone's ass

Definitions

1. Rapidly chasing or pursuing someone.
   Canada, US, colloquial, vulgar
2. Tailgating someone.
   Canada, US, colloquial, vulgar
3. Persistently urging someone on and putting pressure on them.
   Canada, US, colloquial, vulgar

Examples

“Help⟳! The cops are on my ass!”

“Then they saw⟳ him, his legs pumping, his face⟳ a mask of determination. "Go!" he shouted in a high voice. "They're on my ass!"”

“Why is this guy on my ass? I guess⟳ doing ten over the limit⟳ isn't enough speeding for this moron.”

“My mom's always on my ass about keeping my grades up.”

“They would see⟳ to it that I graduated, not by pulling strings as might have⟳ been done at other schools, but by staying on my ass just as a parent would to help⟳ me off the field as well as on the field.”

“I slept on his couch for a few days, then he started getting on my ass about looking for work⟳. I said, 'For Christ's sake, Frankie, I just graduated. Can I just enjoy⟳ the moment?'”

CEFR level