off and on

off and on

Intermittently. It's been snowing off and on since last night, but not much has accumulated. We had been dating off and on for about a year, but we didn't get serious until last month.
See also: and, off, on
Farlex Dictionary of Idioms.

off and on

Also, on and off.
1. Intermittently, from time to time. For example, I read his column off and on, or We've been working on the garden all summer, on and off. [Early 1500s]
2. Also, off again, on again; on again, off again. Uncertain, vacillating, as in Theirs is an off again, on again relationship, or The peace talks are on again, off again. Some believe this term originally referred to minor railroad accidents, where a train went off track and then on again. [Mid-1800s]
See also: and, off, on
The American Heritage® Dictionary of Idioms by Christine Ammer.

off and on

intermittently; now and then.
See also: and, off, on
Farlex Partner Idioms Dictionary

ˌoff and ˈon

,

ˌon and ˈoff

not regularly; not continuously: It rained on and off all week.
See also: and, off, on
Farlex Partner Idioms Dictionary
See also:
  • (I've) got to take off
  • be off for (something)
  • be off for sth
  • (Now) where was I?
  • be well off for (something)
  • be well off for something
  • be off with you
  • break off
  • base off (of) (something else)
  • bounce off the walls