Someone who is more or less obliged to follow or do as another person (partner) does, i.e. like the shoes on someones feet.
Related to shoeing
e.g. 1: Since Bobby's girlfriend came to town he's been such a shoe.
Dude you are looking up shoes what you need to do is look down.
Something you put on your foot
Look a thingy to put on your foot. Yeah thats a shoe.