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The blatant act of perving on a girl so much that it looks like you would go so far as to get her up the duff.
It's obvious that Chris really has a thing for Angela. He was duffying her in the gym again.
by RedheadM23 August 05, 2011
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dropping down from higher level irish even though they're up to standard in the subject!

can also be used when dropping down from any subject
'man fuck this i'm already doing 6 honours for the leaving so i'm duffying irish'
by erp2themax November 08, 2009
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