Muntjac Share definition Flag A muntjac is a vampire baby deer goat thing. It is so freaking adorable that you want to squeeze it every time you see it. Just squeeze. go to google and type in muntjac, and see for yourself. Muntjac by gracey321 May 16, 2011 0 0 Get merch Get the Muntjac mug. Buy Now — $32.95 See more merch