hot on

adjective

Enthusiastic for.

“He is hot on mental arithmetic.”

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Meanings

adjective
  1. idiomaticinformalEnthusiastic for.

    He is hot on white-water rafting.

  2. idiomaticinformalKnowledgeable about.

    He is hot on Anglo-Saxon history.

  3. idiomaticinformalSkilled at.

    He is hot on mental arithmetic.

Synonyms & antonyms

Also see
keen
Cite this entry
APA

hot on. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/hot%20on

MLA

“hot on.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hot%20on. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “hot on,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/hot%20on.

Source: hot on on Wiktionary, CC BY-SA 4.0.