1. A German family who gives caterpillars to each other every night. From the word "kreit", in German it means caterpillar, stating that their ancestors performed the famous caterpillar on each other as well
2. A crazy person who likes pegging/making strange facial expressions
3. Kreit, also coming from the word ketchup-a person who loves ketchup.
Dude, did you see bobby last night when he was drunk? Man he was like a kreitman you should've seen it!
dave: Hey man, pass the ketchup
bill: Dude, what the fuck you have plenty! Who do you think you are, a kreitman?