is on

Verb

be on (third-person singular simple present is on, present participle being on, simple past was on, past participle been on)

1. (UK, literally, transitive) To be ranked at (something), based on polling.
   • The Tories are on twenty-five percent in that constituency.
2. (intransitive, literally) To be performative or funny in a wearying manner.
   • You don't have to be on all the time.
3. (literally, transitive) To be responsible for (something).
   • That task is on you.
4. (transitive, African-American Vernacular) To be up to; to be engaged in or scheduled to do imminently.
   • What are you on today?