ちょいムズ

noun, na-adjective

slightly difficult; a bit hard

Casual slang abbreviation of ちょい難しい (ちょいむずかしい). Used in informal conversation to describe something that is a little challenging or tricky.

• この問もん題だい、ちょいムズじゃない？

  This problem is a bit hard, isn't it?

• ちょいムズなパズルを解とくのが好すき。

  I like solving slightly difficult puzzles.