Top Definition
a mouth that won't quit
from VP bo jiiven (Joe Biden) derived from Michael Kinsley's column 7-31-2009:"But Obama's rhetorical goofs usually are different from Joe Biden's momentum-mouth, just as they are different from the empty-headed nonsense of George W. Bush and the bizarre country-club-bar chatter of Bush's father."
by outinitman July 31, 2009
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