(metaphorically) when you take your home made stabbing implement, stuck it into someone's flesh and turned it in a clockwise/anticlockwise direction (your choice). Like when you make a harsh call and instead of saying 'ooo snap' you'd say "oh what a shank and turn".
Can't believe 'shank and turn' was yet to be defined on this website.
by definately not not not pat August 6, 2008
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