後うしろ前まえ

noun

backwards; back to front; inside out

Describes wearing something the wrong way round, such as a shirt with the front at the back, or putting something on backwards.

• シャツを後うしろ前まえに着きてしまった。

  I put my shirt on backwards.

• 帽ぼう子しを後うしろ前まえにかぶっているよ。

  You're wearing your hat backwards.