Drek is Yiddish for excrement/trash/filth :P
Novalis is from the word, nova.
Tobruk is a place near Egypt, and they had some battle there that lasted 240 days (reminds me of the same battle in Tobruk Crater) :P
Jowai is a place in India.
Gagetron is from Gadget… naturally :P
Megacorp is pretty much "Mega Corporation"
That's all I can think of now!