on a roll

on a roll

Experiencing a particularly successful period, without any setbacks or low points. Three championship titles in a row? Wow, that team is really on a roll. Jim was really on a roll last night with his jokes—we couldn't stop laughing! It takes me a while to get some ideas down, but once I get on a roll, I usually end up writing five or six pages a night.
See also: on, roll
Farlex Dictionary of Idioms.

on a roll

in the midst of a series of successes. Don't stop me now. I'm on a roll. Things are going great for Larry. He's on a roll now.
See also: on, roll
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

on a roll

On a streak of success or intense activity, as in The team's scored three runs in the last inning and they're really on a roll, or Once the experiment succeeded, Tim was on a roll. This slangy term, alluding to the momentum in the act of rolling, dates from the second half of the 1900s, but roll alone has been used in this sense since the early 1800s.
See also: on, roll
The American Heritage® Dictionary of Idioms by Christine Ammer.

on a roll

COMMON If you are on a roll, you are making great progress and having a lot of success. Emerging markets, too, are on a roll. I made a name for myself and I was on a roll, I couldn't see anything going wrong. Note: You can say that someone gets on a roll. Once you get on a roll you feel as though you're unbeatable. Compare with on the crest of a wave. Note: This expression probably comes from surfing.
See also: on, roll
Collins COBUILD Idioms Dictionary, 3rd ed.

on a roll

experiencing a prolonged spell of success or good luck. informal
1998 Oldie Western economists cottoned on to basic ‘flaws’ in the [Indonesian] economy which they hadn't noticed (or didn't want to notice) while it was on a roll.
See also: on, roll
Farlex Partner Idioms Dictionary

on a roll

mod. in the midst of a series of successes. (see also roll.) Things are going great for Larry. He’s on a roll now.
See also: on, roll
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions

on a roll

Informal
Undergoing or experiencing sustained, even increasing good fortune or success: "The stock market's on a roll" (Karen Pennar).
See also: on, roll
American Heritage® Dictionary of the English Language, Fifth Edition.

on a roll

Enjoying a series of successes or a run of good luck. This expression, which alludes to successful rolling of dice, dates from the second half of the 1900s. Brian Fremantle used it in Dead Men Living (2000), “As Charlie headed south across the river . . . he thought happily that when you’re on a roll you’re on a roll, and it was one of the better feelings.”
See also: on, roll
The Dictionary of Clichés by Christine Ammer
See also:
  • (you) coulda fooled me
  • (you) could have fooled me
  • be (really) something
  • beat (one) hollow
  • beat hollow
  • beat somebody/something hollow
  • beat someone hollow
  • above and beyond the call of duty
  • bear a resemblance to
  • bear a resemblance to (someone or something)