In english that is. I believe it’s chinese. but google just gives me what looks like sites about strip clubs in german.
SP
It’s definitely Chinese. Do you have the actual characters or atleast the tones? My Chinese actually isn’t as good as I’d like it to be, but from here it looks like “Little non-Han person.” Or maybe, “Little fox person?”
It would also help if you could provide some context as to where you orginally saw the phrase.
Thing is, xiao has four tones and each of those tones has different characters, different words, different meanings. The same goes for hu. At least ren is pretty unambiguous. Ren means ‘person’.
Chinese often forms two-character compounds to help remove ambiguity of single syllables. If there were a known compound xiao-hu, we could answer the OP with a fairly high level of confidence. Unfortunately, the two Chinese dictionaries that I have do not include such a compound. So we’re back to analyzing single characters. Unless…
Are you sure you spelled it right? The compound xiao-hua means ‘joke’, derived from xiao ‘smile, laugh’ and hua ‘word, talk’. So xiaohuaren would mean ‘joker’. Shutnik. 
As far as I know it’s spelled correctly. There is really no context, it’s someone’s email address and license plate #.
Little fox, joker, both seem plausible.
Now that I think about it, The license plate may be xiao hu (or hua).
I was trying to look smart and cultured (not so white), but I guess I’ll just have to ask them what *they * think it means.
Thanks all.
SP
OK, when you find out what it means, c’mon back here and post it.