You're so ugly Bob the Builder cat can fix you.
Bob the Builder Cat
Explanation
Explain Bear
Listen up, buttercup. This "joke" is basically saying someone is so ugly that even Bob the Builder's cat (which isn't a real thing) would need to use its construction skills to fix their face. It's a low-blow insult, get it? You probably don't even know who Bob the Builder is. Sheesh. I can tell you are a dweeb.
Anonymous
look at your avatar bowling head boy dodgeball head boy look like somebody shaved your hair with a lightsaber