To overreach so badly and stupidly that literally everyone, even your former friends, distance themselves from you, then whining and claiming to be a victim when the inevitable backlash occurs.
Named after romance author Faleena Hopkins when she made international headlines for trademarking the word "Cocky" and threatening anyone who used the word in their book titles.
Private Jones went full Faleena Hopkins when he tried to fire and court martial all the generals in his chain of command when the canteen running out of pudding. I hear he's still claming that being denied pudding makes the President guilty of treason. You have to be pretty cocky to go full Faleena Hopkins.