1. Person who buys exclusively cheap, generic furniture.
2. Person whose home resembles a Habitat showroom.
3. Person who tries to achieve the 'designer home' look by decking their flat out in furniture and cutlery that looks swanky only in the context of the Argos superstore they bought it in.
"Tim you habitwat, why have you got square plates?"
"Sweetheart, can't we get some second-hand furniture or something? Everything in this flat is made out of pine. We look like a right pair of habitwats."