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Going waaay over the top with something and not reaping the consequences.
(usually used in situation or with a noun)
"Dude, did you hear Dave went bare four rounds in a row? He didn't even get her pregnant. He's going japanese so hard."

"I shot up an ounce of heroin and didn't OD. #goingjapanese"
by peanutlicker May 04, 2014