The amount that will fit in a mouth.
He swallowed a mouthful of sea water when he fell in.
Quite a bit.
“Unquestionably his metabolism is unduly susceptible to stresses resulting from the interaction of external excitations,” he said, and Bobbie patted him on the shoulder in a maternal sort of way, a thing I wouldn't have cared to do myself though our relations were, as I have indicated, more cordial than they had been at one time, and told him he had said a mouthful.
Something difficult to pronounce or say.
“She sells sea shells” is a bit of a mouthful to say.
Bombastic or awkward.
Once this happens to be the result, there is little reason for waxing over such mouthful phrases as 'grass-roots democracy', 'democratic decentralization' or 'panchayati raj'.
From Middle English mouthful, mouth-full, mouthe full, equivalent to mouth + -ful. Compare Dutch mondvol (“mouthful”), German Mundvoll (“mouthful”), Danish mundfuld (“mouthful”), Swedish munfull (“mou...
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