sugoi dekai
A raglan shirt with the words "SUGOI DEKAI" written on the chest. "Sugoi dekai" means "super huge".
The shirt was originally worn by Uzaki Hana from Uzaki-chan Wa Asobitai!, but it became meme attire after the anime adaptation was released. Other characters wearing the shirt shouldn't be tagged as Uzaki Hana, unless they're specifically cosplaying her.
Examples
