onfire
adjectiveUK /ɒn ˈfaɪə/
US /ɑːn ˈfaɪər/
Burning with flames.
The campfire was on fire and kept us warm all night.
OTHER MEANINGS
2. Very excited or full of energy.
The team was on fire after scoring the winning goal.
3. Working very well or performing greatly.
Her singing was on fire at the concert last night.
4. Spreading very quickly, like a fire.
The funny video was on fire and everyone shared it.