Word.ws English Dictionary

be on one

be on one verb: behave in an irrational, aggressive, or eccentric manner.

Verb

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

  1. (slang) Behave in an irrational, aggressive, or eccentric manner.
    • Janine: Oh, see you, Gregory. Goodbye, Mr. Johnson. You know what? I'm just realizing I don't know your first name.
      Mr. Johnson: When you get home tonight, look up in the sky. It's written in the stars.
      Gregory: He on one today.2023, Brittani Nichols, Abbott Elementary, season 2, episode 22, spoken by Gregory Eddie (Tyler James Williams)

Forms of be on one

third-person singular presentis on one
present participlebeing on one
pastwas on one
past participlebeen on one

Questions about be on one

What does be on one mean?
Be on one means behave in an irrational, aggressive, or eccentric manner.
What part of speech is be on one?
Be on one is a verb.
What is the past tense of be on one?
The past tense of be on one is was on one.

Words near be on one in the dictionary

  1. be off with you
  2. be on
  3. be on at
  4. be on days
  5. be on nights
  6. be on one
  7. be on one's beanwater
  8. be on one's bullshit
  9. be on one's merry way
  10. be on someone's dick
  11. be on someone's nuts

Source and license

Adapted from Wiktionary: be on one (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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