A "guinea pig" is a person who is the first to test, use, or experience something new—such as a product, method, or idea — so others can evaluate its effectiveness or safety.
It stems from the widespread use of the rodents in scientific, medical, and psychological experiments starting in the late 19th century.
The idiom is not an insult or a comparison to the animal's appearance, but rather a reference to the animal's historical role in research and testing.
Usage Examples:
"We need a few guinea pigs to test our new, experimental software."
"Volunteers acted as guinea pigs in the clinical trial."
- From online sources with editing
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Had no idea why those small guinea pigs are called pigs, until my son brought home a class pet to take care of during Xmas holidays when he was in grade three: it made lots of noises!
Next time I heard the name again was at work. A co-worker from Cisco Boston office complained that he felt like a guinea pig, when I told him that he was the first one using a software function.
Don't think anyone likes to be thrown into unknowns and be used as a test subject. My empathy goes to those animals killed in lab tests. As for those medical test volunteers who are called "guinea pig pros", I admire their bravery but don't want to be one when I'm alive.
Wish All a smooth Monday, and don't let "Sunday blues" bite.
