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1.
noun: A kinky move started out with a turkey (thumb in vagina) where the fingers are swung around so that the middle finger stimulates the anus, so that both thumb and finger make the shape of a big hook.
In the throes of passion, he swung his hand around from a turkey, sticking his finger in her ass, giving her the Big Hook.
by Notapussy August 28, 2009
 
2.
a less common term originating in Liverpool, England meaning 'so what?'.

Pronunciation: Big 'oowk
"Hey, Deal or No Deal is comin' on in a minute!"

"Big Hook! That show's shee-hite!"
by Mandy Dingle February 17, 2007