B.F.U.I.K.Y
B. F. U. I. K. Y is your friend until you make them cry and then they turn into your worst enemy.
He said I was B. F. U. I. K. Y when I made him fail math because I cheated.
She called me B. F. U. I. K. Y because I told her crush she was a total dork.
My friend was B. F. U. I. K. Y after I stole his lunch and said it was a rat trap.