"Squishy" as an adjective for yarn

I've often seen the word "squishy" used to describe yarn, usually in the context of someone saying "It's just so squishy!" about a particular skein or type of yarn. I never really understood what it meant until recently.

I finished spinning this yarn last weekend:



It's a three ply - a gray Jacob Z twist, a green unknown wool Z twist, and a dark pink Merino S twist. They were plied together with an S twist. I figured this would be OK because the grey had been a bit overspun and the pink very loosely spun.

It worked. I ended up with a 115 yard, 110 gram skein measuring about 8.5 wpi. And after washing it, when I took it down from the shower rail where it had dried, one word popped into my head.

Squishy.

It was just the right word to use. It isn't a hard yarn (some of my very first ones definitely were!) and it compresses in your hands but springs back instantly when you let go. It's fluffy but not fuzzy. This is my only true three-ply to date (excluding Navajo ply, which uses only one single) and it makes me wonder...is squishiness related to the number of plies? Or did I just get lucky with the amount of twist in each single. Was it mixing singles of Z and S twist? Would it have come out the same if I hadn't (seriously) overtwisted the grey single?

I have no idea. But I'm very much looking forward to experimenting to find out! I still have more green and pink singles, I just have to spin up a third single. I could do more grey....but do you have any recommendations for a good colour to go with the other two?