Abstraction allows one to have the "egg, bacon, Spam and sausage without the Spam" because that is the nature of abstraction, you abstract elements.
The Python crew evidently had strong views about this and were having an deep discussion about the abstract art movement, the world artistic appreciation and the notion of: The crowd only hear what they want to hear, in the form of a skit.
As the post modernism movement was getting into it's stride and art exhibitions were focused on telling people what was an wasn't art, people who didn't like that sort of art or didn't understand it were told that the works that they thought were trash, were in fact really good and voicing opinion to the contrary in an open forum would be fruitless because the intellectuals who had already made their minds up about the works would only hear what they wanted to.
It's some what of a parody of most forum discussion, where people select the finest choices of words... In this case, spam..
And in the end, if any of this even remotely made sense to you then, like me, you have probably plenty of spam.
If that made sense to you... then perhaps an alternative
The spam topic is a metaphor for the propaganda in the news, where the news would edit the choicest cuts of information and then spread it around liberally. The Vikings are the embodiment of the foreign press looking at us through their narrow understanding and their buzzword culture which is exemplified through the repetition of the word spam, in effect they were only choosing to advertise one part of a diverse and over arching opinion.
That some things cannot be abstract.
This happens all the time in the mainstream media and as a consequence, even the person who was stating the message in the first place begins to loose his original message as the media influence starts to twist his words, this could be seen as a parody of political discussion, where the candidate would say one thing, have his words twisted by the media and then would find himself twisting and distorting his message until eventually he has to give in and just accept that people see him as a racist bigot.
Or..
SPAM SPAM SPAM SPAM
SPAM SPAM SPAM SPAM
SPAM SPAM SPAM SPAM
SPAM SPAM SPAM SPAM
SPAM SPAM SPAM SPAM
SPAM SPAM SPAM SPAM