Malti...who?

So as you are now aware..we have added to our family. We recently welcomed Kasey Kiesling.. aka Kyler's puppy.

His mom is a MaltiPoo (which is a mixed breed or now a new "designer breed" of a Maltese and Poodle... his dad is a Chihuahua.

Here's what I need help with.... what would you call Kasey (besides Kyler's?)...
(a) MaltiPooHuahua (which is what we initially were calling him) OR
(b) MaltiPooChi (my recent name, cause of Poochie..another name for dog)...get it

And Kasey's picture of the day... compliments of Kyler taking Kasey for a ride: