Bitcoin Slang, Your positions are automaticallyliquidated due to insufficient trading balance after a margin call.
This occurs when trading using "leverage buying" at high levels 5:1 or 10:1
The large swings in the Bitcoin exchange rates can force automated margin selling, when the Broker sells out the customer without notice.
Visible definition in muscles as a direct result of having low body fat and reasonably well formed and built muscles. Similar to being 'ripped' only not to such an extent.