"People didn't laugh at that joke? Obviously it's because of political correctness and not that it wasn't funny! You young people are just so sensitive! Help, I'm being oppressed even though nobody complained or seemed to give a shit!"
The joke was about looking gay when doing a two-finger swipe to scroll on mobile devices, which is just poor framing. Odds are that he was trying to play off of the stereotypical gay hand flip even though the motions aren't close enough for it to work.
It's not even like touch gestures are a difficult subject. E.g.:
"…and what's the DEAL with touch gestures? Two fingers to scroll, then you pinch and twirl and fiddle. I'm trying to call Domino's, not get the thing off!"