Twenty English pounds. Adapted from the English "tenner", meaning ten English pounds.
"That'll be thirty pounds please"

"Crap! I've only got a twenner!"
by hometownlost November 19, 2008
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A twenty pound note similar to 'fiver' or 'tenner'.
person 1: How much is it?
person 2: it a twenner
person 1: I've only got a fiver and a tenner
by AnonymousFun August 13, 2018
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