noun
weakness for fine clothes; clotheshorse
Describes a person who loves clothes and spends excessively on them; often used in a self-deprecating or mildly critical way.
彼女は着道楽で、毎月新しい服を買っている。
She has a weakness for fine clothes and buys new ones every month.
着道楽が高じて、クローゼットが服で溢れている。
His love of clothes has gotten out of hand, and his closet is overflowing.
食道楽 is a parallel compound meaning a weakness for fine food; 着道楽 is the clothing equivalent.
Compound of 着 (ki, 'clothing') and 道楽 (dōraku, 'hobby, indulgence'). The exact historical derivation is uncertain, but the word follows a productive pattern of combining a noun with 道楽 to indicate a passionate interest.