Term used to describe any restaurant item which is meant to be fancy or exclusive (presumably for the purpose of driving up menu prices), but it only comes off as unnecessarily hoity toity.
Any normal menu items would be chicken breast, carrots, tomato, sour cream, lettuce, etc. While items like togarashi tempura, nduja ricotta, slow cooked sunchoke, house mascarpone, chow chow, etc. would be considered churnk de schplur.
Frisee? Arugula? Brodetto? Geez, there's no shortage of churnk de schplur on this menu.