I had been in touch with the term a few times until I really understood what it meant. Getting into a short trade is a total genius thing. After some reading on the subject, what "really" taught me what a short was is the great friend called @crossholder.
Imagine that you have 10 units of a coin (let's call it 10 shitcoin) and that by analyzing the market you see that the value of that coin is falling ... then you sell that coin (let's assume they are worth 1 bitcoin at the moment) and , after the sale, you wait for the drop to happen ... and actually shitcoin drops (in that theory ... 50%) ... then you repurchase the same 10 units for half the price and get 1/2 bitcoin in the process ... says it's not a master's move ?!
Some time this theory is working and some time not. Sometimes short trade is profitable and sometimes long-term is profitable I think.At this moment i love short-term trade.Because btc price is now up-down mode. When you will be in lose then try to hold them for long term. OR you can understand that the coin will be down more in next few days you can sell as soon as possible and wait for buy again. In this situation short term is profitable. Because in this formula you can increase your holdings.