Boobs so big, they're god-like in size.
Guy 1: "Look at those chesticles. Those things have to be at least double E's"

Guy 2: "For sure. That bitch ha some titan titties!
by xbassistdoodx August 25, 2012
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A woman with large breasts.
Or breasts resembling Leonardo dicaprio and Kate winslet. Or resembling the actual titanic.
"Whoa bitch get out my face with ya titanic titties"

Emily: dude did you see those?
Jake: yea dude those were some titanic titties.
Emily: I thought it was the real life movie, so realistic.
by Titanic tittie maker December 20, 2013
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