T.

It's a sad day when the one and only e'mail
received is spam. Remember when we called
unwanted mail junk mail? (I suppose we still do,
when it's of the paper variety.)
If there was still a truck
going door-to-door collecting junk
(as in the junk man) would we be required
to rename him Spam Man?

Here are two odd definitions of junk:

hard salt beef for consumption on board a ship

and

old cable or cordage used when untwisted
for making gaskets, swabs, oakum, etc.