Green’s Dictionary of Slang

(US) crippled; thus geehuncle n., a crippled person.

1927		C. Samolar ‘Argot of the Vagabond’ in AS II:9 391: A cripple is said to be geed-up or gehuncled.
1949		Monteleone Criminal Sl. (rev. edn) 96: geehuncle A cripple; lame person.