Basically, a person who laughs at his own jokes making it less funny. Can also be used to address someone who makes a joke or points out something that is funny, but really isn't to a majority
God, the really funny mothafucka is at it again! One more joke from him and drinking potassium cyanide doesn't even sound so bad!
A face on bluud.com that was made as a creepypasta by a guy who was victim to an email user on a website chatting channel that gave a face O)_(O. Anyone who chats with him is to have nightmares over and over. The final stage is where you are in a half awake/sleep feeling where if you see your reflection, you will have a broken open jaw and laugh. Anyone who has chatted with you to in the same channel as funnymouth, you will want to say O)_(O
When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
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).