Definition of «oil up»

This is a slang command or threat used jokingly in comment sections, typically implying that a physical confrontation or a 'show' is about to happen. It originated from bodybuilding culture but has been co-opted by internet trolls as a way to mock someone or express a weirdly aggressive form of excitement. The phrase is almost never meant literally and is used to create a sense of chaotic or 'freaky' humor in online discourse.