This is the 6731st most frequent Turkish word.
bayrakçı
Flag seller or flag maker.
Here 'bayrakçı' means a vendor or seller whose merchandise involves flags, often highlighting a specialty or focus on a particular type of goods.
Mahalledeki bayrakçı, 29 Ekim etkinlikleri için özel bayraklar satıyor.
The flag vendor in the neighborhood is selling special flags for the October 29th events.
'Bayrakçı' here refers metaphorically to someone who is deeply patriotic or identifies with the symbolism of the flag.
O, milli duygularını göstermek için kendine bayrakçı lakabını taktı.
He nicknamed himself 'bayrakçı' to show his patriotic feelings.
This usage pertains to a virtual or business-oriented context, indicating a professional dealing in flags in a contemporary digital realm.