1. If you have no idea what Airbnb is, which many people do not, then you have no idea what to do at the site and you'll probably leave.
2. I know what Airbnb is and still could not figure out Housefed was until I read your post here.
It sounds like a fun business. I think you should be more explicit on the front page as to what exactly it is. I would definitely try this out if there was a host near me.
I think it's fine. For now. It is likely that your early adopter will have heard of AirBNB, and that phrase "AirBNB for food" carries high information density about what your site does.
But you probably don't want to the the brand of your company in the longer term to AirBNB.
It sounds like a fun business. I think you should be more explicit on the front page as to what exactly it is. I would definitely try this out if there was a host near me.