expression
while I'm alive; as long as I live
Idiomatic expression used to strongly assert that something will not happen or will not be allowed as long as the speaker is alive. Often followed by a negative statement. The variant 目の黒いうち (めのくろいうち) is also used.
See also: 目の黒いうち (めのくろいうち)
私の目が黒いうちは、そんなことはさせない。
I won't allow such a thing as long as I live.
お前の好きにはさせない。俺の目が黒いうちはな。
I won't let you have your way. Not while I'm alive.