Gloomy rock music for sad people, hence the word "mope". More commonly used to refer to older post-punk or goth bands with an overtly depressive or dark atmosphere.
"I don't get how you can listen to Red Lorry Yellow Lorry, it's such mope rock."
To walk slowly across a street without yielding to or acknowledging oncoming traffic, crosswalks or other pedestrian laws. Usually seen in rough, urban areas.
I had to slam on my breaks today while I watched some gangstas danger mope across the street.