hot on

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

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
References in classic literature ?
Breaking back to cover, the chase hot on his heels, he had run full tilt into a party of village youths from Glen Ellen and Caliente.
And it's hot on the heels of British Gas's warning on Friday that prices will only go one way - up.
pounds SS SSE are foreca SSE are forecast a 14% rise in profits And it's hot on the heels of British Gas's warning on Friday that prices will only go one way - up.
YOUSEF is back in the region again following hot on the heels of Erick
Yousef is back in the region again following hot on the heels of Erick Morillo who once again proved that he is one of the biggest DJ draws around in the North-East.