hot on (something)

hot on (something)

With a fervent enthusiasm for something. My daughter is now hot on baseball, so we're going to a game at the end of the month. Now that Cecil is hot on cooking, our kitchen is in a constant state of disarray.
See also: hot, on
Farlex Dictionary of Idioms.

hot on something

Fig. enthusiastic about something; very much interested in something; knowledgeable about something. Meg's hot on animal rights. Jean is hot on modern ballet just now.
See also: hot, on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

hot on

1. Also, hot for. Enthusiastic about, as in She's really hot on golf, or He's hot for another skiing vacation. This seemingly modern slangy usage was first recorded in 1667. Also see make it hot for.
2. Also, hot at. Very good, impressive, as in He's hot at anything involving numbers. This expression, first recorded in 1573, is frequently used in the negative, as in I'm not so hot at new computer programs.
See also: hot, on
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • hot for (something)
  • hot on
  • go like hot cakes
  • like hot cakes, go
  • get hot
  • not so hot at (something)
  • too hot to handle
  • hot tea
  • Hot ziggety!
  • hot diggety