ガチンコ勝負 (ガチンコしょうぶ) Japanese meaning | KotomoraMeanings
1
noun
head-on fight; serious contest
colloquial
Colloquial term for a no-holds-barred, all-out confrontation or competition where both sides give everything they have.
いつも
ガチンコ
勝
負
だ
。
Those two always have serious, no-holds-barred debates.