na-adjective
unskilled; clumsy; poor at something
Colloquial, often self-deprecating or teasing. Used for lack of skill in a specific activity. Stronger than 下手 (へた).
See also: 下手くそ (へたくそ)
俺、料理は下手っぴだから、いつもカップ麺だよ。
I'm so bad at cooking, I always just have instant noodles.
He's pretty clumsy on the guitar, but he seems to enjoy playing.
Derived from 下手 (へた, 'unskilled') with the colloquial suffix っぴ, which adds a playful or emphatic nuance. The exact origin of っぴ is uncertain, but it appears in other slang terms like けちっぴ (stingy).