v. to urinate on a shaved chest and watch it gather into a substantial body of urine, resembling a lake, or more appropriately, a pond, as the name suggests.
You should have seen this guy get manponded last night. He was swimming fer sher.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).