a person or thing that you are so used to seeing that you no longer notice them :
I worked there so long that I became part of the furniture.
a person or thing that you are so used to seeing that you no longer notice them :
I worked there so long that I became part of the furniture.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005