2 definitions by SantaMayCry

The word originated from the word Fo' Realious (Foe-Real-ee-us). But when one 12 year old on a halo 2 clan forum misspelled it, the word became Forsarelleus (Foe-sa-rel-ee-us)

It is used to verify something that someone says. Its very similar to saying "seriously"
Dude1:Man, i teabbaged the shit out of him!

Dude2:Fosarelleus!?
by SantaMayCry July 3, 2005
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Used to clarify that you are not a necrophiliac after saying something that would make you appear as if you were.
by SantaMayCry January 24, 2009
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