Female who is utterly inept and has no conceivable concept of common Sense. Female who makes life choices based on emotion, rather than logic or reason.
A combination of "Kirby" and "Bitch", a Kirbitch is anyone in a piece of media, who gains additional power by eating others (while remaining weaker than Kirby)
"That man just ate his opponent!"
"It's how he get's stronger, that Kirbitch"