Well, at least it can’t get any worse.

During his recent trip to the “The Tonight Show,” Charlie Day played a game of “5-Second Summaries” with Jimmy Fallon in which they try to guess movie titles based on short plot summaries. Unfortunately for Day, the characters on “It’s Always Sunny in Philadelphia” would probably have better luck.

Everything leads up to one glorious moment of awfulness, which Fallon impeccably describes as “the worst slap high five ever.” Enjoy.

“The Tonight Show Starring Jimmy Fallon” airs weeknights at 11:35 p.m. ET on NBC.