The ultra-class size breasts of women within the realm of japanese pornography.
J-cup stars are awesome. Some of the best are Matsushima Marina and Ohura Anna.
by Blake J-Cup Fan November 7, 2005
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One of the best damned boob sizes ever. Famous amongst Japanese bikini models and porn stars.
My last girlfriend, for example, had j-cups. Best titty fuck ever.
by R4wr July 19, 2006
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Hitomi J-Cup is the most amazing woman alive. She suports the entire Japanese film industry on her J-Cup sized breasts. Without her the world would lose meaning and the milky way would implode into the sun.
Kyle: I don't think I can take living anymore.

Dave: Don't say that Kyle. Here. I have something that will make the pain of losing your entire family and dog in a train accident.

Kyle: What is it?

Dave: It's a DVD of Japanese porn superstar Hitomi J-Cup.

Kyle: I don't think it will help.

Kyles Mum's Ghost: Just watch, Kyle. Just watch...........
by TheMuffPuffer October 2, 2012
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