A sexual juggernaut, BY DEFINITION, is a person (mostly male) who dominates the playing field with his sexual overtones.
When a Sexual Juggernaut is near, dark alert theme music will play. And everyone will have to be alert, else they risk losing their cheeks getting clapped.
A sexual juggernaut will show absolutely no mercy, be forewarned.
Episode 51 of SOAP
Some N00b: WATCH OUT FOR ADAM, HE'S BECOME A SEXUAL JUGGERNAUT!
John: *Clapping all the cheeks available in the field of view.