Definition of all-in wrestling in English:

all-in wrestling

noun

British
  • [mass noun] Wrestling with few or no restrictions.

    • ‘While the BBC wound up their weekly sports marathon with a results round-up, ITV gave us a spot of all-in wrestling.’
    • ‘The mass observers joined happy crowds to watch all-in wrestling.’
    • ‘It will not be a fight for the purists, unless you like all-in wrestling.’
    • ‘I'm proud to report that my lad is the all-in wrestling champion of Huntington.’
    • ‘As a spectator sport it beats all-in wrestling hands down!’

Pronunciation:

all-in wrestling

/ˌɔːlɪn ˈrɛslɪŋ/