Look, guys, I know for a fact that Dave Thomas and Rick Moranis chose the word "hoser" as a euphemism for the word "f*cker", because the latter word is a word hosers use a lot (and often in a good-natured sort of way), but you couldn't say "f*cker" on the kind of daytime comedy show those guys were doing on TV in the 80's. Besides, they wanted to make Doug and Bob sort of cute and innocent, for more general audience appeal. TV wasn't as raw then as it is now.

Similarly, "hosehead" was a euphemism for "f*ckhead", another word that is popular with real hosers.

And then there was their usual exclamation "Take OFF!" which was a euphemism for "F*ck OFF!"...same basic reasoning.

They were sanitizing the daily life of the hoser for daytime TV.

Poppa Gator, you are quite right that back bacon is not technically fast food. It is real food. I should not have lumped it in with fast food.

I have already pointed out that many hosers are, in fact, quite harmless to anyone but themselves. The majority of them are probably harmless. But there are some who are not. I've seen a fair number of the former and a few of the latter.