the act of humping someone rapidly with one leg cocked. Of course, it is only called the humpity dumpity if both parties are completely clothed and works best on the first person to pass out aka J Cross!!!
When a tornado is so strong that an egg is capable of being shot through a brick wall. Mentioned by Dale Gribble in the 'King of the Hill' television show
Its when you limp to the side like your leg was broken shakin' and twitchin' kinda like I was smokin'. No two people will do it the same. You got it down when ya appear to be in pain Humpin', funkin', jumpin', jig around, shakin' ya rump.
"Within two years of first kissing the crack pipe, Carla went from a high-priced call girl to a Times Square humpty dump before peddling her ass out on the street. Now, she dead."