1.Crap placed upon ones head.
2. A quicker way to say "Crap in a hat."
3. A hat made of crap
2. Person 1:"I just beated you at teh Halo!"
Person 2: "Crap hat"
Da guy who invented the Pasteurization process and studied germs and without whom we would not have Rabies Vaccinations. He Pwns.
Rabies shots were invented by Louis Pasteur