schlepinshamus
a yiddish word that refers to a person that hangs around and helps you with errands around the house or rides with you when you go somewhere just to keep you company and because they have nothing better to do.
Bill is my schlepinshamus and will usually ride with me when I have to take the dog for her haircut. He drives around the block while I take the dog in because there is no where to park around there.