Movies
Right, here's the plan. First, we go in there and get wrecked, then we eat a pork pie, then we drop some Surmontil-50's each. That way we'll miss out on Monday and come up smiling Tuesday morning.
— Withnail · Withnail and I

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Withnail lays out a grand scheme for dodging the week: drink hard, eat a pork pie, take some pills, and skip Monday entirely so Tuesday arrives cheerfully. The comedy is in his confident, step-by-step tone, treating a reckless escape from reality like a sensible itinerary.
Context reviewed