There's gonna be a meta joke involving the villain of Jeffy's 20th Birthday! (who may or may not be Nancy again) saying something like "Who else did you expect? Does Bad Things Guy?"
Or “Who did you expect?” “Nancy?”
Yes, that would also be perfect!
Who did you expect, Marvin?!
(For some reason, a lot of people want Marvin to go insane in the movie)
What do you think?