fire-eater
US /ˈfaɪərˌiːtər/
UK /ˈfaɪərˌiːtər/

1.
mangiafuoco
a performer who puts flaming objects into their mouth or appears to breathe fire
:
•
The circus featured a spectacular fire-eater.
Il circo presentava uno spettacolare mangiafuoco.
•
Children watched in awe as the fire-eater performed.
I bambini guardavano con ammirazione il mangiafuoco esibirsi.
2.
focoso, zelante
a person who is aggressively enthusiastic or zealous about a particular cause or activity
:
•
He's a real fire-eater when it comes to political debates.
È un vero focoso quando si tratta di dibattiti politici.
•
The coach was a fire-eater, always pushing his team to excel.
L'allenatore era un focoso, spingendo sempre la sua squadra a eccellere.