Definition: The word you're looking for is "Bubba". It's a phrase from the Bible verse Mark 10:41, which speaks about the "marking" of Jesus, especially regarding His death. The key phrase is "Marked with an iron plate on your forehead." In context, this means that Jesus was pierced by a sharp needle and his flesh was cut away to make a mark or markable spot.
Here's a playful example sentence using this slang: "Bubba, you're mark 10:41! I have just learned about that!" This is not exactly a literal or accurate representation of Mark 10:41 in the Bible, but it serves as a play on words and adds humor.