What Does It Mean?
The phrase "sick as a parrot" is a British idiom used to express extreme disappointment or frustration. Despite the literal image of an ill bird, it has nothing to do with actual illness—it’s all about emotion.
Origin
The expression became popular in the UK during the 1970s and 1980s, especially among football (soccer) fans and commentators. It was often contrasted with the phrase "over the moon", which means extremely happy. Though its exact origin is unclear, it likely stems from the idea that parrots are usually lively and colorful, so seeing one "sick" would be unusually sad or disappointing.
Example Usage
After losing the match in the final minutes, the manager said, “I’m absolutely sick as a parrot.”
Don’t ask her about the exam results—she’s been sick as a parrot since yesterday.