Related Clues:

• Shells emptied of peas, I regret
• Oyster shells
• 'Aw, ___!'
• “Shoot!”
• Constrained cuss
• Removes from the shell — I'm disappointed!
• Disappointed expression of Finn, perhaps, aboard vessel
• 'What the ___'
• "What the ___!"
• 'Hell' alternative
• Euphemistic exclamation
• "What the ___ is that?"
• "Darn it all to __!"
• Emphatic lead-in to "yes"
• Euphemism for 'hell'