"Kettle" is a slang term for a person who is easily manipulated or taken advantage of. It is often used to describe someone who is gullible, naive, or easily persuaded.
Here are some examples of how "kettle" is used in slang:
- "He's such a kettle, he believes everything he reads on the internet."
- "Don't try to pull a fast one on her, she's not a kettle."
- "They took advantage of his kindness, he's a real kettle."
The origin of this slang term is unclear. However, it is likely derived from the image of a kettle boiling and being easily controlled by the heat.