As you will, in all likelihood, have buttered your own parsnips for your festive roast dinner, the non-buttering facility of fine words is neither here nor there and we can enjoy them for what they are.
I didn't think I could surpass the delight of contriving a reason to use 'ovibovine' ('having qualities pertaining to both goats and cattle') and 'defenestrate' ('to throw through a window'; best used figuratively, eg 'he completely defenestrated that idea').
Then the esteemed Danny supplied me with these three:
Cuniculous ('full of rabbits')
Percoarcted ('manouevred an object into a narrow room')
Boanthropy ('the delusion that one is an ox')
Let your vocabujoy be unconfined.