A "stone in my shoe" or "stone in the shoe" is something or someone who is causing severe irritation and creating problems for you.
In the movie Godfather, "I got a stone in my shoe, Mr. Corleone. A two-bit punk who works for me."
Joey Zasa to Michael regarding Vincent.
Student loan debt is a real stone in my shoe.
Joey Zasa to Michael regarding Vincent.
Student loan debt is a real stone in my shoe.
by JonSwift September 26, 2019