ˈmau̇thˌfu̇l noun
( plural mouthfuls -ˌfu̇lz)
1.
a. : a quantity that fills the mouth
was submerged by a wave and got a mouthful of seawater
b. : the quantity usually taken into the mouth at one time : bite
assuagement of their hunger by a few more mouthfuls — Glenway Wescott
2. : a small quantity : morsel
take a mouthful of sweet country air — John Dryden
3.
a. : a mouth-filling word or phrase
the description of his new duties as “administrative coordination of developmental foreign investments” was a mouthful
b. slang : a comment or remark rich in meaning or substance
you said a mouthful