Bogey will explain himself, after all, he is an elite amature defender, but I think the term pretty much explains itsef.
Another term I use is "Soft Topspin Defense" which is a shot I make at the table or a step away, usually on FH. The might be a ball coming in I will not make a strong FH counter-attack, but use a very soft hand at impact and go through ball lightly, or if it is a fast incoming ball, then I would allow the incoming pace and spin of the ball to bump my racket back a little.
The end result is a very controlable return that has some light topspin.
Why is this shot useful? It can be very difficult to time the ball based on just looking at the stroke. Also, even if the topspin is very light, it will still "kick" when it lands on other side, so the opponnet must deal with that change of timing and location as well.
Even yet another shot is a light topspin passing shot. A lot of Div 1 Korean players use this as a shot to stay in the rally and look to attack the next ball or at the very least, prevent the opponent from strongly attacking high percentage.
How does it work?
Let's say you are a step or two from the table and your opponent changed depths on you and now you are either out of position to make a strong topspin with pace, or the location of the shot makes it unfeasable to get there to do that.
Instea of going for a low percentage attack, you could make a light topspin shot and keep it low over the net, either shallow bounce or deep bounce on opponent side. The ball isn't high enough to kill easily with a smash and the topspin can be really tricky to time. Once opponents go for a kill and miss a few (because the kill vs this ball is NOT nearly as easy as it looks) then their return is also a "safe" return. If you can time it or anticipate well (you should, because you know what he is gunna do) then you can attack with topspin or pace depending on the ball you get back.
So now you have suddenly changed from being under pressure, you stayed in the point, and you have a better opportunity to take control of the point or even end it.
Isn't that a great deal?
What should we call such a shot?