慣なれっこになる

expression, godan verb (-ru)

get used to; become accustomed to; become familiar with

Casual expression emphasizing that one has become thoroughly accustomed to something, often through repeated experience. The 〜っこになる pattern adds a sense of 'getting to the point of being used to it'.

• 毎まい朝あさ早はやく起おきるのにもう慣なれっこになった。

  I've already gotten used to waking up early every morning.

• 彼かれの冗じょう談だんには慣なれっこになっているから、驚おどろかないよ。

  I'm so used to his jokes that I don't get surprised anymore.