From Dragon Quest Wiki
Yangus's titfer is a hat in Dragon Quest IX modeled after the one worn by Yangus in Dragon Quest VIII.
|Yangus's titfer (DS)|
|Found||Received from Yangus at the Quester's Rest if it is your birthday.|
|Equipable by||All Vocations|
|Flavor text||A spiky skullcap scented with the sweet smell of Yangus's sweat.|
In Cockney rhyming slang, titfer is slang for a hat.