This meaning refers to behaving gloomily and without energy because of disappointment, loneliness, or unhappiness.
He moped around the house after losing the match.
Do not sit there and mope all day.
This meaning describes moving or performing an activity slowly because of boredom, sadness, or low energy.
He moped toward the bus stop.
The students moped through the final lesson.
This informal noun refers to someone who frequently behaves in a sad, inactive, or self-pitying way.
Stop being such a mope and join us.
The character is portrayed as a lonely mope.
