What you say when someone tells you
something he thinks is hilarious but really isn't. You
say this to avoid hurting your friend's
feelings in breaking it to him that his joke sucks.
Dudeman 1: "Oh man, I was playing horseshoes in Red Dead Redemption and I got a really close throw and John was all
like, 'Did you see that!' It was so
funny dude!"
Dudeman 2: "I guess you had to be there."
Dudeman 1: :(