Definition of hot on
- The company president is very hot on the idea of developing new products.
: having a relatively high temperature
: capable of giving a sensation of heat or of burning, searing, or scalding
: having heat in a degree exceeding normal body heat
: fast, quickly
: a period of relatively high temperature : a period of heat
: one that is hot (such as a hot meal or a horse just after a workout)
: strong sexual desire
: heat, warm
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