In a word: Gay.
In multiple words: a person who is so gay that he feels the need to post useless replys ergo, making himself look stupid and, well, Gay.
officer cartman is a gay.
The clause of a license for an open source project that requires you to publicly suck the balls of (give due credit to) the contributers.
After some indy company got rich for making a really cool game, the sole writer of one of the open source libraries they used started whining on the internet to everybody. He decided not to add a cartman clause to the license of his project, but his balls are so very dry right now.