Cooper and Ian Attempt to “Underdog” on a Swing Set [VIDEO]

With all this talk about swing set safety and the argument about whether it's "underdog" or "underduck" (see below), Ian and I decided to try the famous swing move we all loved as kids. We headed to a park down the street, because what else should we be doing on a Monday? See how things went.

Before all the haters come out, I'll admit neither of us used perfect form, but it is harder than it looks when you're a full-grown adult! Here is the discussion that sparked this idea. What do you think it's called: underdog or underduck?