The art of repeatably 'slabbing' ones nut sack and/or strap on device against the preferred orifice(s)* during a sexual encounter.
*where orifice is defined as any surface, whether socially acceptable or not.
Bloke 1 (to mate on the subject of porn): Slabbing hell, did you see the slab on that!
Bloke 2 (in response): I'd slab that!
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