expression, noun which may take the genitive case particle 'no'
locked in a grapple; grappling fiercely
Describes two people locked in a fierce, back-and-forth struggle, often physically wrestling or fighting. Can also be used figuratively for intense, seesawing conflicts.
See also: くんずほぐれつ
The two of them got into a huge brawl, locked in a fierce grapple.
The debate turned into a back-and-forth struggle.