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 November 2, 2008
 Get the Post Mumblemug.
Get the Post Mumblemug. by The Mumbling Manchildren February 8, 2010
 Get the Ass Mumblesmug.
Get the Ass Mumblesmug. Basically a mumbly sort of bum.  A derogatory term for someone who does not pronounce their words effectively.
I can't figure out if I ordered a ticket to France or am going to dine on a pair of pants as the travel agent was a mumble bum.
by Rob Mercer January 21, 2006
 Get the mumble bummug.
Get the mumble bummug. The act a person commits when they are thinking about something and begin talking out loud to themselves about it. Similar to 'thinking it over.'
by JacintaK July 6, 2009
 Get the Mumbling it overmug.
Get the Mumbling it overmug. by theinventorofthemumble-grumble September 20, 2012
 Get the mumble-grumblemug.
Get the mumble-grumblemug. by MAGAAHHH September 2, 2022
 Get the Mr. Mumblesmug.
Get the Mr. Mumblesmug. When your paramour is trying to whisper you sweet words but you can't hear shit they are saying because they talk like they have a mouth full of marbles.
by SwiftyDefines August 31, 2017
 Get the Sweet Mumblesmug.
Get the Sweet Mumblesmug.