The It's Always Sunny in Philadelphia episode "McPoyle vs. Ponderosa: The Trial of the Century" (S11E07) ends with the judge dismissing the whole case and calling in the particpants of the next trial:
We have Morgan State Delivery vs. the proprietors of one Paddy's Pub.
which of course is the gang yet again. But this makes me wonder, is this actually a reference to a previous episode of the show, possibly one of the gang's various schemes involving said "Morgan State Delivery"? (The Ponderosa-McPoyle wedding referenced in the case this episode was about was back in season 8, so maybe the episode possibly referenced at the end was too?)