Farmer’s Slang & Its Analogues. 1890–1909, rev. 2022.
Mumping
subs. and adj. (old).—Begging.
1
1820. LAMB, The Essays of Elia, ‘A Complaint of the Decay of Beggars in the Metropolis.’ When they come with their counterfeit looks, and MUMPING tones, think them players.
