How is this tag, for a joke?

Kch teacher hote hi khadoos hai. Ek sir the jisne sirf, class mein ek toffee khane ke liye, aisa kaan kheeche mere pehle mujhe earphones mein medium wala buds fit hote thi, ab mujhe large wale fit hone lage. Pehele toh maine ek aur toffee khayi kyuki mere dono medium buds kho gaye the