From menorahs to running elves, there’s plenty to do around South Slope this weekend, and these are our top picks. Thursday, December 6 Head over to Freddy’s [http://freddysbar.com/] (627 5th Ave) for the Cashhank Hootenanny Jamboree [http://freddysbar.com/events/579/cashank-hootenanny-jamboree-n-y-mag-critics-pick-village-voice-best-hootenanny-series/] tonight at 8pm. Be