SNL's Colin Jost uncomfortably tells ruthless jokes about wife Scarlett Johansson as she watches backstage

Despite a recurring sense of dread, "Saturday Night Live" star Colin Jost has likely become accustomed to telling merciless jokes at his wife Scarlett Johansson's expense in the annual joke swap in which he and "Weekend Update" co-anchor Michael Che recite jokes they have written for each other during the show's news segment – supposedly without seeing them in advance.What Jost may not have been prepared for this year was Johansson's presence backstage, as she was forced to watch her husba