Aless?

Aless is short for aneros-less. It means having something like an aneros session without using the aneros.
Some people find they can call forth aneros-like sensations even without using it. Just by focusing on the feelings, and maybe including contractions, or nipple stimulation.

This is actually how I started out, years before I discovered the aneros, or experimented with anal/prostate stuff at all. I would lie in bed, in the dark, and concentrate on what an orgasm felt like... I'd search for sensations and try to build them, without touching myself at all. I don't try it much any more, because I find it way too hard to switch off... not that I continue having orgasms, it just makes me sort of shaky and on-edge.

What Clenchy said. To start off with, I felt that I progress a lot further with A-less than the toy itself, because it gets rid of a few things - worrying about re-lubing, clean-up, and laying out towels. But, it caused me to start doing it before sleep and it can sometimes be difficult to stop.