Related Clues:

• Bottom, where water collected, perhaps?
• Scapegoat - strike - bottom - barrel
• Barrel - laughing stock
• Blunt end - target of ridicule - hit with the head - cask - US backside
• Cigarette end
• The barrel end of a gun
• Save time in the end
• Hit with the head, as a ram
• Nevertheless, reports old Irish politician
• Hit with the head, as a goat
• Prankster's patsy
• Cigarette fragment
• Cigar remains
• __ in (intrude)
• Knock head on cask