“___ a roll!”

I’M ON

This phrase is often shouted when someone is gaining momentum or success, like in a game or project. Think of a casual way to say you’re making progress.

This clue is a fill-in-the-blank for a common excited phrase people say when they’re gaining momentum or doing well. "I’m on a roll!" means someone is having a streak of success, like winning repeatedly in a game or acing tasks one after another. The answer fits naturally as the missing start of that idiom, which is widely used in casual conversation and pop culture.