Crossword puzzle clue "reason to have a party"

Reason to have a party

Reason to line up at a party

Reason for a search party

Reason for a tailgate party

Actor who said "Some people have youth, some have beauty—I have menace"

Sounds you might make when I say "Would you rather watch your parents have sex or have your parents watch you have sex?"

Have no reason to argue

Literary reply to "What reason have you to be morose? You're rich enough"