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An adjective which is used to describe an object, person or situation as being brilliant. Often used by people in the Dublin region, originating from the North of the city. It is derived from the word whopper.
"My new Air Max are whopstain".

"Did ya see Rooney's whopstain of a goal".

"That birds rack is whopstain"
by DoubleDesire November 04, 2009
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