This song (as "Heaven Knows I'm Miserable Now") is often cited as an example of Mozzer's miserablism. Nothing could really be further from the truth, when it comes to this song, at least. None of the critics seem to have noticed that there is deliberately no space between the words "every" and "day". Rather than moping about his whole life being dull, this song is a brilliant eulogy to finally escaping from an awful life best left behind.
In the song, the protagonist is looking back at the bad old days when he was stuck in a dead-end seaside town. The usual holiday clichés are reversed, with Morrissey caustically commenting in a contempory interview "The idea of a resort in Britain doesn't seem natural".
The "cheap tray" mentioned is probably referring to the god-awful cheap holiday gifts you get in poky little shops in Scarborough.
Greased tea could be exactly what it says - greasy horrible tea from a "Greasy Spoon" beachfront cafe. Or it could just mean tea with the attending sweet scones and jam.
Many people have commented on this song's resemblance to John Betjeman's poem "Slough". Other people suggest this song may be connected to the Neville Shute book "On The Beach".
The official video gives a lot of notions and meanings to the lyrics (for example the fur/hide on the promenade, the writing of a postcard, etc.).
Hide: the skin of an animal. Synonyms: pelt, skin
Etch a postcard: this line is often replaced with "scratch on a postcard" on live performances.
Everyday: maybe this word has a particular meaning, since it is written like the adjective "everyday". It would be correct to write it as "every day", as a noun.
Link:
YT Video