This is a humorous anecdote built around wordplay and escalating irony. The joke relies on the double meaning of “appetite” and the effects of Viagra, with the punchline delivering a twist through the wife’s exasperation. Here’s a breakdown:

• Set-up: The husband repeatedly turns down meals throughout the day, blaming his lack of appetite on Viagra.

• Pattern: The same excuse is used three times (breakfast, lunch, dinner), building comedic tension.

• Punchline: The wife finally reveals the unintended consequence — he’s been physically on top of her all day due to the drug’s effect, which has prevented her from eating.

It’s a classic example of situational humor with a sharp, unexpected conclusion. Would you like this rewritten or adapted for a different tone or audience?