Actually that was his family name. 
http://www.snopes.com/donald-drumpf/
Yeah, I think John Oliver was wrong there... Trump would be Trumpf in German... so, pronounciation would be sonewhat simmilar...
I suppose the Drumpf changed to Trump because it sounds simmilar... but Drumpf does not have any meaning in German as far as I know
ALSO on a more positive and AMIGA related note:
Here is the PCB Thread for the Amiga 2000...
http://www.a1k.org/forum/showthread.php?t=56039
