Humpty Stumpty

Noun. Refers to an amputee with serious anger problems, to the point where their presence causes everybody around them to not have a good time and lose their buzz.

Man with no legs sits in wheelchair, angry: I fucking hate this place. Fuck all of you motherfuckers.
Nearby bystander, listening to the amputee bitch and bitch and can't take it anymore: Shut the fuck up, Humpty-Stumpty. Maybe you just got off on the wrong, uh, "foot." Maybe you have a, ya know, "leg up" on the competition. You look like you're a bit, uh, "stumped." Wow, I really put my, uh, foot in my mouth there. Sometimes you just have to take things one, um, ya know, "step" at a time. Stop being such a fucking buzzkill before I tip over your wheelchair and light your bitch ass on fire. Okay, Humpty Stumpty?