roll on

roll on

1. To move continuously forward in a rolling motion, on wheels, or atop or in something with wheels on it. The cart will keep rolling on if you don't block the wheels. The ball went flying off her foot and rolled on to the end of the field.
2. To continue to make progress in some task or activity. You can keep rolling on with what you're doing. I'll let you know if I need you on another project. Please ensure you have all the necessary paperwork in order so that the audit can roll on uninterrupted.
3. To apply on (a surface) in a rolling motion or by using something that rolls. In this usage, a noun or pronoun can be used between "roll" and "on." You'll need to roll on two or three coats of paint before you'll get an even color on the walls. The rolled the advertisement on the billboard.
4. To elapse or pass by in time, especially very quickly or imperceptibly. I can't believe it's nearly Christmas already! The days just seem to roll on faster and faster lately. The months rolled on into years, and still we hadn't heard word from our missing brother.
See also: on, roll

roll on (something)!

Something can't arrive or happen soon enough! I love this time of year—roll on Christmas!
See also: on, roll
Farlex Dictionary of Idioms.

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.
See also: on, roll
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • roll on (something)!
  • roll by
  • roll off
  • roll to
  • roll to (someone or something)
  • roll off of (someone or something)
  • roll down
  • roll onto
  • roll onto (someone or something)
  • roll along