if it kills you

if it kills (one)

By any means necessary; no matter the cost or difficulties involved for one. I've come too far to give up now—I'm going to get this washing machine working again if it kills me! He's determined to get the decision overturned, even if it kills him.
See also: if, kill
Farlex Dictionary of Idioms.

if it kills you

whatever the problems or difficulties involved. informal
2001 Nancy Hope Wilson Mountain Pose I'm cracking that code if it kills me.
See also: if, kill
Farlex Partner Idioms Dictionary
See also:
  • if it kills (one)
  • have any joy
  • necessity is the mother of invention
  • tinker with
  • tinker with (something)
  • tinker around
  • tinker around with (something)
  • have no use for
  • have no use for (someone or something)
  • have no use for somebody/something