Green’s Dictionary of Slang

1. (US, also gimped) crippled, disabled; lit. and fig.

1984		I. Doig Eng. Creek 13: You will End Up as Nothing More Than a Gimped-Up Saddle Stiff.
1992		R. Price Clockers 242: Starting into a nervous little rain-gimped jig of his own.
2004		in Stockhouse & Enstice Jazzwomen 159: A lot of the movements that I make, and a lot of pictures where I’m all gimped up, those are completely unconscious.

2. (US campus) confused, at a loss, mixed up.

1975

G. Underwood ‘Razorback Sl.’ in AS L:1/2 59: I’m all gimped up about my schedule.