When a male succeeds in engaging a girl in a sexual encounter. The slab is to be interpreted as a phallic device.
Dude, are you tryin to slip her the slab?

Person 1: Where's Luke going with that girl?
Person 2: Oh he's slippin' the slab to her.

The chick wants the slab slipped to her so badly.
by rahzah October 18, 2010
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