From Longman Dictionary of Contemporary Englishmopemope /məʊp $ moʊp/ verb [intransitive] SAD/UNHAPPYto feel sorry for yourself, without making any effort to do anything or be more happy Don’t lie there moping on a lovely morning like this! The week he died, we all sat around and moped. → mope around/about (something)→ See Verb table
Examples from the Corpus
mope• I breezed away into a corner where I could sip my vodka-less tonic and mope.• She's just been sitting around moping all day.• Jamie was moping around his flat, existing on cups of tea and stale bread toast.• He's not even attempting to look for a job -- he just mopes around the house all day.• Instead of spending all day moping around the house, why not come help me pick beans?• Other Acutes mope around the room and try not to pay any attention to him.• It would benefit no one if we all sat around moping for the next week.• My Oscars are spending a lot of time moping on the bottom of the tank.• There's no point moping over Jane - she's not worth it.• Don't just lie there moping, waiting for the phone to ring.• But she did not leave them uneasy with the social order or moping with guilt over their comfortable circumstances in life.Origin mope (1500-1600) Probably from mop, mope “stupid person” ((14-16 centuries))