1
general::
Phrase(s): Cut the comedy! [and] Cut the funny stuff!; Cut the shit!
Stop acting silly and telling jokes!; Be serious! (Use shit with caution, as it is considered vulgar.) • John: All right, you guys! Cut the comedy and get to work! Bill: Can’t we ever have any fun? John: No. • Bill: Come on, Mary, let’s throw Tom in the pool! Mary: Yeah, let’s drag him over and give him a good dunking! Tom: Okay, you clowns, cut the funny stuff! I’ll throw both of you in!
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Also, cut the crap. Stop talking or behaving foolishly, as in Cut the comedy! We have work to do, or It's time you cut the crap and got to work. The first of these slangy imperatives dates from the early 1900s, the ruder variant from the 1920s.
American Heritage Idioms