What is Fat Finger Trade?

An error in an electronic trade caused by a human typing the wrong price or volume.

In-Depth Explanation

Fat finger trades can cause massive, short-term price spikes or crashes (flash crashes) if the order is large enough.

"A trader accidentally sold 100 million units instead of 1 million, causing a sudden drop in the currency pair."

Knowing the terms is just the start. Learning how to apply them is where the edge is found.