Solicited Finger In the Anus. Popularized on the website Fark.com and is a joke resulting from the cliche among TotalFarkers. see UFIA.
Unlike the UFIA apparently an SFIA, while crude, IS also criminal.
by Mario Di Mambro March 21, 2005
Solicited Finger In the Ass. Less common sibling of UFIA, a cliche popular at fark.com .
(from fark...) Colon-cleansing clinic was actually selling SFIA.
by definite lee March 21, 2005