shoe is the opposite of cap, shoe represents truth and non-lying in response to someone calling something cap.
friend 1: “bro i just rizzed up a shawty”
friend 2: “that’s cap bro we know how you rizz up girls the last one you literally called a babygorilla”
friend 1: “it’s not cap bro it’s literally shoe”
friend 2: “what the hell are you talking about”
Something someone randomly says when you make a funny joke or you say something and they reply with shoe and its all for shits and giggles. Just nonsense but funny if you find it funny. Also said to reaction images.