polymer
Explanation
The Joke
A mysterious figure (possibly a wizard or mad scientist) confronts someone, telling them "I am not going to eat my vegetables." The figure responds with a threat: they will be sprayed with a "good-tasting polymeric form." The person is then engulfed in some kind of green substance. In the next panel, the person asks, "Okay, now can I go eat my things without winning?" (suggesting the polymeric coating made vegetables palatable), and the other person responds, "I won't divorce you for this. Not at all. This is not a stupid idea at all. Thank you, wife."
The final panel shows a woman asking what a child thinks about their dad's dream, and the child responds dismissively with "Boring stuff." The comic plays on the fantasy of a parent who desperately wants to avoid eating vegetables and imagines an elaborate sci-fi solution -- being coated in a polymer that makes vegetables taste good -- rather than simply eating them like an adult.
The Humor
The comedy comes from the absurd escalation: instead of just eating vegetables, the character fantasizes about being sprayed with a taste-altering polymer. The spouse's sarcastic "I won't divorce you for this" underscores how ridiculous the whole scheme is. The final panel deflates the fantasy entirely by revealing it through a child's bored perspective, making the dad's grand vision seem as mundane as it truly is. It is a classic SMBC move of taking a petty, relatable complaint and wrapping it in pseudo-scientific grandeur.