Ride the tiger, you can see his stripes but you know he's clean, oh don't you see what I mean ... Gotta get away, Holy Diver
I actually checked the comments thinking "I'm going to be very disappointed if nobody got this reference."
Translated, it means either "a clean tiger" or "a reindeer keeps silent".
Oops, sorry, my bad. Sometimes these questions are kind of strange/obvious, mine included. I should have looked at your level before answering.
I was about to post this:
"So, if I succeeded in crossing a reindeer with a tiger... then how would we distinguish between them? A compound word?"
And then I saw your comment. Great minds... :P