慣なれっこ

noun, noun which may take the genitive case particle 'no', na-adjective

being used to; getting used to; being accustomed to

Colloquial noun/adjectival noun expressing that one is thoroughly accustomed to something, often with a nuance of being so used to it that it no longer feels special or bothersome. Commonly used in the pattern 〜に慣れっこだ or 〜に慣れっこになる.

• 彼かれは早はや起おきに慣なれっこだ。

  He's used to getting up early.

• もう失しっ敗ぱいには慣なれっこになっちゃった。

  I've already gotten used to failing.