It’s a way chronically ill people talk about energy.
Our bodies tend not to be as resilient as healthy people. So if we do too much (ie. use too many spoons), instead of recovering after a day or two like healthy people would if they did too much, we tend to have our health worsen for long periods.
So the analogy is you have a limited number of “spoons” (energy) each day, and you have to use it wisely.
Obviously, this doesn’t impact every disability and is mostly used by chronically ill people and people with energy limiting conditions.
