gomer pyle, n. — Green’s Dictionary of Slang

gomer pyle n.

[for ety. see gomer n.²]

(US) a fool, a yokel.

1982		‘W.T. Tyler’ Rogue’s March 68: Up yours too, Gomer Pyle.
1993		M.B. ‘Chopper’ Read How to Shoot Friends 183: Slap me on my limp wrist and call me Gomer Pyle.
2021		S.A. Crosby Razorblade Tears 200: ‘I’m not gay [...] No, I’m not, Gomer Pyle’.