It's a real word, look it up.

Me: *looking up words that will be removed from a dictionary* Flibbertigibbet!
Boyfriend: They're taking flibbertigibbet out of the dictionary?!
Me: No, no, it's just a random link on the page.
Boyfriend: Oh good, because if they were, we'd have words... and one of them would've been flibbertigibbet.