In this typically bizarre Bill Plympton cartoon, two stolid-looking men trment each other based on the assumption that this is, after all, a cartoon, and so the characters are infinitely flexible and will heal instantly.
The underlying gag is how they take turns in torment each other, stolidly submitting to having one's face infinitely twisted, or converted into a patch of grass. It put me in mind of one of those Laurel & Hardy shorts, in which they would confront a nemesis -- Charlie Hall, for example -- and take turns in performing all sorts of indignities on each other, standing stolidly while each insult was heaped.
This short cartoon was later incorporated into Plympton's feature, THE TUNE.