Talk about HIGHlarious!
The It’s Always Sunny In Philadelphia star stopped by the Tonight Show and like a champ — threw on an inflatable suit and accepted a flip cup challenge!
Did someone say flip-flip-Flipadelphia?! HA!
It’s definitely not as easy as it looks and you’ll be shocked to learn which flip-cup pro came out on top.
Ch-ch-check out the duo go head-to-head in this epic game (above)!