ぎゃふん

Etymology
Probably a compound of.

Adverb

 * 1) speechlessly, in a tongue-tied fashion, in a deflated or defeated manner

Usage notes
Used with the adverbial particle.

Implies an argument or other kind of verbal conflict, in which the term describes the loser.



Note that this is an adverb in Japanese, even though this term often correlates to other parts of speech in translation.