When I finished playing my guitar, I noticed an amputee in the crowd not giving me a round of applause.
Amputee's Applause
Explanation
Explain Bear
Okay, listen up, you big dummy. The joke is about a guitar player who expects a 'round of applause' but sees an amputee who literally can't give one because they might not have hands. Get it? It's dark, you dense human.