When something is completely out of character to the point that it's not even the same person anymore.
Absolute bullshit; utter nonsense; something rather suspicious that can bring forth uneasy, angry, or irritated feelings. The stunt pulled by people who don't know how to tell the truth or enjoy messing with people's heads as a hobby.
What's up with this fuckery? I don't deserve to be messed with!
Amy Winehouse - Me and Mr. Jones (partial lyrics)
Nobody stands in between me and my man, it's me
And Mr Jones (Me and Mr Jones)
What kind of fuckery is this?
You made me miss the Slick Rick gig (oh Slick Rick)
You thought I didn't love you when I did (when I did)
Can't believe you played me out like that (Ahhh)
What kind of fuckery are we?
Nowadays you don't mean dick to me (dick to me)
I might let you make it up to me (make it up)
Who's playing Saturday?
What kind of fuckery are you?
Side from Sammy you're my best black Jew
But I could swear that we were through (we were through)
I still want to wonder 'bout the things you do