Say Uncle

undefinedWhile playing and frollicking with my kids, I continued tickling my daughter until she said “uncle!”
Anyone know how the term “Uncle” came to mean I-give-up?undefined

According to wordorigins.org:

Here is what the Word Detective has to say

Just wanted to relate a story. I was wrestling around with my son when he was very young. When I told him to say ‘uncle’, he said ‘John’. Took me an hour to stop laughing about it.