hot on

adj — 3 senses

hot on

adj

1

Idiomatic, Informal Enthusiastic for.

He is hot on white-water rafting.

2

Idiomatic, Informal Knowledgeable about.

He is hot on Anglo-Saxon history.

3

Idiomatic, Informal Skilled at.

He is hot on mental arithmetic.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.