Two episodes into Saturday Night Live's 45th season, and Pete Davidson is still yet to make an appearance. The reason behind that is that he has a mystery role in the next Suicide Squad movie. See...he's not super hard to spot in this James Gunn IG post from about a week ago:

However, being a comedy show and all, SNL opted to make a joke about why he hasn't appeared on the show yet, rather than just saying with a straight face "Oh, it's just a damn scheduling conflict with the Suicide Squad sequel." Said joke came during Weekend Update when cohost Colin Jost read a line about an incident that occurred at a music festival. The joke, which is always better when you read it in your head, went like this: "A man who drove his car to a music festival still cannot remember where he parked his car a week after the show. Well, we hope you make it back soon, Pete." It got a pretty big laugh.

Punchline spoiled. Our bad. You can still view it at 1:15 or just watch this whole clip if you care to: