hot on

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See also: hötön

English[edit]

Adjective[edit]

hot on

  1. (informal, idiomatic) Enthusiastic for.
    He is hot on white-water rafting.
  2. (informal, idiomatic) Knowledgeable about.
    He is hot on Anglo-Saxon history.
  3. (informal, idiomatic) Skilled at.
    He is hot on mental arithmetic.