also: かんバッチ
button badge; pin badge; tin badge
A small metal badge with a pin on the back, often with a printed design, commonly sold as merchandise or used for identification.
I have an anime button badge attached to my bag.
I got a limited-edition pin badge at the event.
Standard spelling using バッジ.
Variant spelling using バッチ; also common in casual contexts.
Compound of 缶 (kan, 'can, tin') and バッジ (bajji, from English 'badge'), referring to a badge made of tin or metal.