well thumbed

US /ˌwel ˈθʌmd/
UK /ˌwel ˈθʌmd/
"well thumbed" picture
1.

使い古された, 読み古された

having been read or handled a lot and consequently soiled or damaged

:
His favorite book was old and well thumbed.
彼のお気に入りの本は古くて使い古されていた
The dictionary on the shelf was clearly well thumbed.
棚の辞書は明らかに使い古されていた