There are many ways to verbally humiliate somebody but arguably the worst thing you can tell someone you dislike is that they are in fact your child. This is the act of getting "sonned." And according to Fabricio Werdum after losing by submission to him in May of 2006, current K-1, Strikeforce and Dream Interim champion Alistair Overeem has been Werdum's son for a "long time."
Strikeforce Werdum vs. Overeem: Fabricio Werdum Update (via truplya777)
Check out Aaron Tru's interview with Werdum and get his thoughts on Overeem and get his prediction for the Nick Diaz / Evangelista "Cyborg" Santos Welterweight Title fight later this month.