When we are talking to customers about holidays and where we've been at weekends etc we call ours "the van" or "the camper".
(If we tell people we have a camper they always say oh have you got a VW!)
We don't tend to call it a Motorhome as if you do, you get all the, oh you've got loads of money then have you, oh yes, money bags etc etc.
It's frustrating, No we're not money bags, we work for a living and save our money for things we like! just because they sit on their backsides at home claiming dole money and not working but it makes me embarrased to call her a Motorhome!