This is the 7788th most frequent Turkish word.
karabıyık
"Karabıyık" means "black mustache" in English.
Here, 'Karabıyık' is used as a nickname or descriptive title for Mustafa, possibly referring to a characteristic feature like his mustache, giving him a distinguished identity.
Karabıyık Mustafa köyün en meşhur hikâye anlatıcısıdır.
Karabıyık Mustafa is the most famous storyteller of the village.
In this sentence, 'karabıyık' describes a physical characteristic of the hero, indicating he has dark-colored mustaches.
Kasabanın yeni kahramanı, karabıyık bir gençti.
The town's new hero was a young man with dark mustaches.
Here, 'karabıyık' is used metaphorically to refer to a fashion style or cultural trend associated with having dark mustaches.