1. A replacement name for a prick in your life with whom you are trapped as family.
2. General term for a prick in your life who you are unable to ditch by yourself. (then the "L" is written/typed lowercase)
1. Londasue blocked off my driveway last night, barged in through my front door with a his own spare key, and proceeded to drink all my liquor and eat all my food.
2. That drama kid from school with the incessant mime routine sticks to me like glue. I've done everything I can do by myself to get rid of him, but that is just giving him more material to work with. He is such a londasue.