！？、！
Gah!? Don't rip out my precious hair!
Literal
Gah!? My precious head-hair [obj-を], rip-out [prohibitive-な]!
ぐはっ is a dramatic pain/shock interjection — the voiced ぐ gives it a guttural quality. 頭髪 'head hair' is distinctly formal (contrasts with everyday 髪), creating a humorous register mismatch with the crude ぐはっ. むしる 'to pluck/rip out' is vivid and violent. ~な is the blunt prohibitive. A comedic action-scene exclamation.