What type of shirt should Yabba wear?

Yabba is a fictional female character and I will design outfits for her. She wears pant legs tucked into boots and tops tucked into belted blue jeans. She lives in a surreal world where nothing makes sense and the police threaten to arrest her if she does not stop wearing her top (shirt or sweater) tucked in but she refuses to wear it un-tucked. What type of top do you imagine her wearing? Thanks.