I was going to say what I thought it was but then I read the "Degradation of language" thread so I went and looked it up in a dictionary of UK slang instead. So here it is:

house         Noun. A contemporary dance music epitomised by its 4/4 beat and use of 'samples'. Vocals and melodies tend not follow the verse / chorus tradition, as they are just 'samples' which need to be fitted into the 4 bar repetitive base structure. It is a descendant of disco music born in North America. Sub-genres of house include tribal, deep, Italian etc.

Not really the kind of music usually discussed here. But there are some folk acts who include an element of this in their music and some folk music does gets sampled in house music so it's not completely irrelevant.