also: げきむず
extremely difficult; super hard
Slangy intensifier for difficulty; common in casual conversation and online contexts.
This game is so extremely difficult I can't beat it.
I heard that exam was super hard.
Hiragana variant; less common but still seen in casual writing.
Slang compound of 激 (intense, extreme) and ムズ, a shortening of 難しい (difficult).