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A slut. 'Wankjar' is derived from the English words 'wank' meaning 'to masturbate', and 'jar' meaning 'a wide-mouthed, cylindrical container'. In other words; someone who holds a lot of sperm.
"Oh my god...What a wankjar!"

"Of course you could have sex with her! She's a massive wankjar!"

"Suck it you filthy wankjar!"
by Cosine04 January 24, 2009
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