The best sentence or sentence-filler ever.
"What have you been doing?" "Mumble mumble."

Welcome to asperger king, where your extremely specific fast-food order is our mumble mumble.
by white brown! May 04, 2010
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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.
You look like a hippo! Hwaha youer look lieke aen hippore hhaw haw!! Post Mumble (second Mumble)
by Danny 123561992 September 17, 2008
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