What is On A Roll?
1.
in the midst of a series of successes
Man, I,m on a roll today. I'd be glad to help anyone who is not doing so well.
See
2.
When you are walking somewhere in public and see a series of people who you know in succession (and acknowledge them).
1- Did you see how many people he ran into?
2- Yeah, he was totally on a roll.
See
