Get the point, but no, actually not, we join nouns, not sentences ;) (but english does, too, just with spaces between?)
Further especially that word few germans could tell you why it is called like that:
Spieß is spear, so Spießbürger/Spießer is just a spear citizen, or a speary?! ;)
(One explanation is the medieval simple citizen that could not afford a better weapon than a simple spear. Not even sure if the only explanation attempt though..)