Mugs in dreams tend to symbolize home pleasures. Seeing a mug in a dream is a sign of mutual understanding, and happy emotional relationships and family ties. Nevertheless, if during the dream the mug breaks, or broken mugs appear, this is always a bad omen for emotional relationships, home and family.
Dream dictionary: running fast and happy dream meanings
Using it in nice and happy conditions announces pleasures at home. To lie on it is an omen of neglect or difficulties in your family life. Seeing it damaged or broken announces family feuds.