Gimp is really just a rare/archaic ableist slur anyway - like to refer to someone with a limp or otherwise a leg/lack of a leg that impedes their gait. I’ve never heard it used in my life.
The sexual usage is from gay bdsm subculture in the 70s that the large majority of ppl who are aware of it are only aware because of Pulp Fiction.
My vote is for pimp
I wonder if it’s a regional thing? I’ve only ever heard it in movies or older TV shows. Where I live people are much more likely to just say “crippled” or describe someone as walking with a limp.
I was confused when I saw Pulp Fiction as a kid because I was like “why is this handicapped guy in a leather suit and what does him being hadicapped have to do with his apparent hobbies” lol. But like I said, never really heard it used in other contexts.