While Over Your Dead Body marks Jorma Taccone‘s first directorial outing since Popstar: Never Stop Never Stopping (2016), he had no Lonely Island references planned for the movie.

Taccone revealed that one line in Over Your Dead Body, now in theaters, which nods to the music mockumentary, came as a piece of improvisation when Juliette Lewis‘ Allegra calls Dan (Jason Segel) a “motherfucking, titty-sucking, two-ball bitch,” a lyric from the Popstar group Style Boyz’s song ‘Rock Roll Skate’.

“And by the way, that was Juliette improv-ing,” he told SlashFilm, noting he hadn’t even realized it was a Popstar reference. “And when she did that, I was like, ‘Oh, s—t!’ Because everybody has their own version of that from third grade, or I do, but I was very surprised when she said it.”

Taccone added, “I didn’t realize that — I was like, ‘I thought this was just a Northern California thing.’ In normal life as an adult, you don’t say that to someone. That doesn’t come up as something that you say. [laughs] So yes, I was thrilled when she said it.”

In Over Your Dead Body, Dan (Segel) and Lisa (Samara Weaving) attempt to save their marriage with a romantic getaway to a remote cabin, where each secretly plans to kill the other. Their murderous plot is foiled when two escaped prisoners and a guard crash the weekend.

Following his 2005-’10 stint on Saturday Night Live, during which he was one-third of the comedy music group The Lonely Island with Andy Samberg and Akiva Schaffer, Taccone and Schaffer co-directed Popstar from a script they co-wrote with Samberg, also starring togerher in the movie.