1. a. a person with many "boo boos" or cuts and his/her head.
b. a person that has an abnormal and somewhat "crazy" personality.
2. what young children like to call people when they are making an insult and are not allowed to use actual insults (ex. idiot, stupid, etc).
1. My little sister calls my dad a booboo head. What she really means is "stupid idiot!"
2. That crazy guy has so many cuts on his head, he's such a booboo head.