Box Office Bombs

noun an object or person that is considered useless or ineffective

• The product turned out to be a dud, failing to meet the promised specifications.
• I bought this new gadget but it's a total dud, doesn't even work properly.
• That movie was a total dud, I fell asleep halfway through.
• His plan to start a business turned out to be a dud, failing to take off as expected.

noun a complete failure

verb to fail completely

• The company's latest product release was a flop in the market.
• The new movie was a total flop, nobody liked it.
• That party last night was a flop, no one showed up.
• His plan to win the competition was a flop, it didn't work out as expected.