Shoulda been there 

You missed being a part of something big. You didn't see it. You weren't there. You can only imagine, but it's not good enough, cuz you weren't there. You should have been there. It means, folks wish you could have seen it, but you didn't. And even if you could see it on video, it's not good enough. You should have been there. The energy was amazing.

Dood, you totally missed it. You shoulda been there.

Shoulda been there by Pisgah June 17, 2012

You Should've Been There 

A shitty way to prevent embarrassment from telling a story horribly and getting a poor reaction. Usually aggravates the hell out of me.

"And then he goes to motorboat her-Ya know what, you should've been there!"

You Should've Been There by WellFuckMyAss May 18, 2017