The dialogue could very well have represented the worst writing ever to come out of Japan, but I suppose I'll never know that. After all, being weird was Python's entire purpose, so trying for weirdness should negate their inclusion. To that I say my list, my rules. I never said the weirdness had to be unintentional. Besides, one more sketch follows.
Most people just know the song without remembering the sketch it came from.
Operatic Vikings, mind you, with the bearskin coats and horned helmets. A couple played by Michael Palin and Graham Chapman, at his screechy-voiced best, don't just enter the diner, but are lowered from the ceiling into their seats via flying harnesses. Keep in mind that the wires are never removed from their backs. Then the sketch proper begins, with Jones' waitress reading off the menu, each item containing abnormally high quantities of spam. They only stop after being shrieked at repeatedly by Chapman's harpy-woman.