@dobiapps.com: Challenge: Daily Authentic English Speaking Practice - Day 209. Phrase: "On a roll." This idiom means you're experiencing a period of good luck or success, with things going your way one after another. It originates from gambling, where rolling dice favorably leads to continuous wins. It can also mean you're in a great state, achieving success after success. Remember, it's "be on a roll"! Examples: "I'm on a roll." (I'm having a lucky streak / I'm in great form.) "She is on a roll." (She's on a winning streak, everything's going smoothly for her.) Scenario examples: "You’ve won three games in a row! You are on a roll!" (You've won three games consecutively! You're really on a roll!) "Don’t stop me now, I’m on a roll." (Don't interrupt me, I'm on a roll right now.) #dailypractice #americanenglish #everydayenglish #english #usshow