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Phrase(s): roll on
1. Lit. [for something] to continue rolling. • The ball rolled on and on. • The cart came rolling down the hill and rolled on for a few yards at the bottom. 2. Lit. [for something] to be applied by rolling. • This kind of deodorant just rolls on. • She rolled on too much paint and it dripped from the ceiling. 3. Fig. [for something, such as time] to move on slowly and evenly, as if rolling. • The years rolled on, one by one. • As the hours rolled on, I learned just how bored I could get without going to sleep.
McGrawhill's American Idioms And Phrasal Verbs