Edit: I came across this Wikipedia link while doing some general reading on OS X and for some reason it really amused me (not that being easy to amuse has ever been an issue with me… 
)
Dogcows do not “moo” (like a cow) or “woof” (like a dog). They say “Moof!”. However when in a very excited state (such as being near a full can of Mountain Dew) they will say “Boo Woo Moof!”.