- A term used to convey a subtle level of un-interest. Most of the time, used as a tool for agreeing with someone without conviction. Or, trying to mask the fact that the conversation has come to its literal end.
J: Hey do you want to watch Cool Runnings with me! It's one of my favourite films and you're going to love it! After we could play cricket or football.

M: Mmhmmm

...

M: Light is affected by gravity! (or anything Math(s)/Physics)

J: Mmhmmm
by BRENDONHUFF July 2, 2011
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