Eric Miller returned to Welford Road two months after quitting Leicester to spark a three-try burst that gave the Barbarians a comprehensive 38-24 triumph over the Premiership leaders.
Leicester seemed comfortably in control as the second half began at 19-7, but were swept away and lost the annual fixture for the third consecutive season.
Miller, now assisting Ulster and Terenure, galvanised the Barbarians' revival by muscling through a couple of defenders to collect Derek Stark's shrewd chip-kick.
Georgia, who play Tonga in the repechage competition for entry into the 1999 World Cup, are to take part in the Welsh Challenge Trophy. They are taking the place of Namibia and will play their first game in the competition when they meet Aberavon at the Talbot Athletic Ground on January 9th. The Georgians were beaten 70-0 by Ireland in a pool match of the European qualifiers in November.