mfff.

n.  a mumble to mask one’s sentimentality.

<The men [in the audience of a movie preview] are more sentimental in one way—that is, they will set there with tears streaming down their faces and will then come out and say, “Mfff.”  They won’t admit it, because they are more cynical or shy or think it unmanly to show their sentiment.  —Walt Disney, Quotable Walt Disney.>

n.  a quiet growl from a dog.

<I heard the pug call a muffled “mfff.”  —Pam Conrad, Stonewords: A Ghost Story.>

n.  the sleepy mumble of someone with a hangover; see also bmmf.

<“Mfff.”  He buried his face in the pillow and clutched for the warm, reassuring flesh that lay beside him in his dream.  —Whitney Lakin, A Paintbrush in the Devil’s Toolbox.>

mfff-ffff.

n.  movies, as mumbled by a boy nervous about asking a girl on a date.

<“You ... uh ... wanna go to the mfff-ffff,” I mumbled.  —Jackie French Koller, Nothing to Fear.>

mghn.

interj.  in “Grunt, a dialect of English passed on from father to son,” “mghn” is a noise to be distinguished from “whaa” (James Dale, Rules For Wives).

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