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a combination of nerd and nerf, the word defines a person who is both a nerd and a jock. The "us" suffix is latin.
That hunky football player plays computer games for two hours a day?! What a nerfus.
by FastrunnerNY January 02, 2009
A crazy paranoid fucker who thinks the world is going to implode and cocks will fly up everyones arseholes
Nerfu says: The Queen is George Bushes cousin, google it.

*googles it*

Sane Person: It's not true..

Nerfu: so ?
by JohnJohnJohn12 February 24, 2008