Yapp

To borrow someone's lighter and then pocket it surreptitiously.
"I'm sure I had one earler - oh, no, I've been Yapped"
by skirky October 05, 2007
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Coop

To assure everyone that you'll definitely be somewhere, but to then not turn up, and with no explanation as to why.
"Looks like we've been Cooped again!"
by skirky October 05, 2007
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