War cry declared right before collision with an object. Similar to "cowabunga," "oh shit" and that
George of the Jungle yell which-I'll-be-damned-if-I-can-spell-out.
The term was made famous on
the internet by a
photoshopped Spider-Man comic strip in which our hero mistakes an overturned truck for his long-term arch-nemesis and proceeds to assault the truck by rope-swinging straight into the side of it.
Spidey: "My doctor's retarded. I don't have a brain tumor...say, if it isn't my old arch-nemesis, a truck!"
Narr:
SPIDER-MAN GIVES CHASE!
(
Spider-Man swings down toward the truck)
Spidey: "Fappo!"
(
Spider-Man collides with truck)