Movies
Would the two of you just do it and get it over with? I’m starving!
— Vickie · Reality Bites

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker impatiently urges two people to get something over with, then supplies a blunt personal reason: hunger. The short final sentence pulls attention toward an immediate bodily need. The humour comes from the abrupt collision between whatever is delaying the pair and wanting food.
Context reviewed