Comes from "crea", short for "creatief"(creative) and "Bea", a female given name. It is used for someone, especially a woman, who is creative, especially when it comes to (hand)crafting things and DIY. Can be used as a noun and adjective.
"Wat heb je dat leuk gemaakt!" "Je kent me, ik ben altijd al een creabea geweest."
"I love what you've made!" "You know me, I've always been a creabea."