Ranked in ascending order of bad sportsmanship:
- “Neener! Neener!”
- “I guess paying off the referee didn’t help you that much, did it?”
- “Hey, never mind… after all, your side had the prettier uniforms!”
- “Imagine what would have happened if I’d played you right-handed!”
- “Yeah, yours was the moral victory. And that moral is: in future, don’t play against someone so much better than you! “
Your suggestions in Comments; the meaner the better.