There is the slimmest of chances for a 3 way tie, IF Tennessee wins out.
But it's a pipe dream, a crack pipe dream as Yankee stated.
The craziest finish would be:
Tennessee 8-4 (5-3)
Florida 8-4 (5-3)
Georgia 8-4 (5-3)
Needless to say, if Florida wins this weekend, this crazy talk should be put to rest.
Does a three-way tie really give us any shot though? Wouldn't the tiebreaker eventually come down to who is ranked highest in the polls, and since we have an OOC loss in addition to the three SEC losses, we'd have no shot at being above either of them.
Or, in the crazier scenario you described, how do they break the tie if NONE of the teams are ranked?