Puddle Jumpers
Regard it as derogatory if you wish, but it's just a generic term used to define small aeroplanes, Cessna or whatever. Many pilots of big aeroplanes may use the term, perhaps some of them in a derogatory way, but it doesn't stop them from getting into a PJ for a bit of fun flying (not that a Cessna can give you much of that, stand by for incoming!).
I happily jump into my own PJ after playing with larger aeroplanes and have fun.