1. to grimace or pull a face; to pout or sulk
Usage: informal; chiefly British
2. to beg or ask for money or food
Usage: archaic; informal

Examples

• The child began to mump when told she couldn't have dessert.
• He mumped about the unfair decision for hours.
• Don't just sit there mumping—tell me what's wrong.
• In the old days, street performers would mump for coins from passersby.
• She mumped a cigarette from her friend outside the café.