Stick a fork in it is a common idiom that means something is finished. It can refer to things that are no longer functional; to people who feel exhausted; or food that is done cooking.
The Origin Of ‘Stick a Fork In It’
The origin of this phrase might come from the practice of sticking a fork in meat that is in the process of cooking. People do this in order to check whether the meat has finished cooking and is ready to eat.
After this expression is said, it’s common for the words “(someone or something) is done” to follow. For example: “stick a fork in (him), (he’s) done!” The words in parenthesis are replaceable depending on who or what is being talked about.
- I bought a new monitor last week and now it doesn’t power on anymore! Stick a fork in it, it’s done; I think it broke.
- Mike’s pizza place downtown might be going out of business soon. Stick a fork in it, he might be done.