Fungo Bungo

The act of wearing tropical or hawaiian themed shirts/attire often out to bars, parties, or other social occasions. Typically done regardless of the current season or weather, contradicting the traditional context in which it is appropriate to wear such clothing.

Person 1: We should go out tonight, but I don't know what to wear.
Person 2: We could do fungo bungo.
Person 1: But we're in the middle of winter!
Person 2: And?