mump /mʌmp/verb 7noun 1forms 3 verb7 •To mumble, speak unclearly.Who mump their passion, and who, grimly smiling, Still thus address the fair with voice beguiling […] — 1773 •To move the lips with the mouth closed; to mumble, as in sulkiness.He mumps, and lowres, and hangs the lip […] — 1630 •To be sullen or sulky.It remained necessary to make a shift at bearing yourself like a man; not mumping, not moping. — 1948 •To beg, especially if using a repeated phrase. •To nibble. •To deprive of (something) by cheating; to impose upon. •To cheat; to deceive; to play the beggar. noun1 •(no longer used) A grimace. formsmumped · mumping · mumps