2 definitions by Gazira

Using the huge amount of back fat on a large girl to masturbate oneself. So called because of the enormous back boobs on American women.
I pulled a right whale last night. She fell asleep on her front, so I had a Yankee Tit Wank on her and went home.
by Gazira March 22, 2010
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Someone who sees themselves as your rival or enemy, but is just too sad for you to bother with.
Art liked to think of himself as my nemesis, but he was just a sadversary.
by Gazira June 24, 2011
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