"flanking the gonk" is a sexual act where a woman is held upsidedown preforms oral sex on one man while another man stands on something and has anal sex with her while pouring hot wax on her feet.
man that chick was such a whore we were "flanking the gonk" all nightlong.
To freak out at an extreme level with either uncontrollable convolutions or hand gestures. To Frank out you must go beyond the level of freak out and use random words and noises that do not make any sense and also move hands and body in an uncontrollable manner, much like an individual with Touretts syndrome having a tick.
When Jen found out the love of her life was coming to the party she started franking out.