Anyone who grew up with Saturday Night Live in the 90s knows the phrase "suck it, Trebek." Will Ferrell, or as I like to call him, my comedy God, played Alex Trebek in Saturday Night Live's Jeopardy sketches where he was often told to suck it by guests like Burt Reynolds and most notably, Sean Connery. Not the real Burt Reynolds and Sean Connery, though I wouldn't put it past either of them to say that to Alex Trebek.
By the look of glee on this fan's face, I think they knew they were going to run into Alex Trebek that day so they wore that specific shirt. She looks way too happy to have good intentions. Luckily, despite the look on his face, Alex Trebek seems to have taken it in stride. He's used to being told to suck it.