Possible Clues:

• Words in an early quote from Bart
• “Don’t have ___!” (“Calm down!”)
• ''Don't have ___, man!'' (Bart Simpson line)
• "Don't have __!"
• ''Don't have ___, man!'' (Bart Simpson quote)
• "Don't have ___, man" (Bart Simpson quote)
• Have ___ (overreact)
• As nimble as ___ in a cage (old saying)
• Have -- (freak out)
• Have ___