gothafokker
("th" as in "the")
It's actually two aircraft manufacturers (Gotha & Fokker) put together, but it looks a bit like the, you know, "mofo" word, which I personally hate.
Examples of use:
"So I made a split-S, went on his 6, squeezed the trigger... and bang! Another gothafokker bites the dust!"
"Those darned gothafokkers won't catch us!"
"I'm a big, bad, mean gothafokker - fear me, n00bs."