“Bescheissen” is not as vulgar as you might think, even if it contains Scheisse (shit).
A more literal translation would be “little Good Lords cheat”. The “*le” at the end is a local (South German) dialect thing, a diminutive suffix meaning “little”, just like “doggy” means “little dog”.
USB devices are also hotpluggable, but that doesn’t mean that the data stays in the system if you just pull out the HDD.