A Mumble/laugh that is a repetition of the word or phrase that was just said beforehand. this is usually done by a nerd or a dork.
by Danny123456781992 September 17, 2008
Post Mumble is what somebody does after they say something that they think is funny. It consists of a mumble/laugh. It is a repetition of the phrase that was just said. It is usually done by nerds or dweebs.
by Danny 123561992 September 17, 2008