Adjective and Noun. Used to define a situation or person of incredible and ridiculous stubbornness. It is worth noting that the usage of 'luntz' is not a trifling matter, as the extent of stubbornness that it entails is beyond any previous possible estimates. It is effective in describing circumstances where one finds him/herself literally speechless at the stubbornness of a person or unnecessary complexity of a situation.

Got the covid-19 vaccine

A Luntz is a maneuver where a man (preferably someone superior in the VRWC) shits in the mouth of another man, and the now-shat-upon man spews forth the fecal matter in a spray that covers the viewing audience. While the shit is still in the mouth of the now-shat-upon man, some of the feces likely soaks into his brain, as it does into the brains of the viewing audience.