死磕

sǐkē
(coll.) to fight to the death

CEDICT

colloquial

Entry Composition

1 死 sǐ
  1. to die
  2. impassable
  3. uncrossable
  4. inflexible
  5. rigid
  6. extremely
  7. damned
2 磕 kē
  1. to tap
  2. to knock (against sth hard)
  3. to knock (mud from boots, ashes from a pipe etc)