2 definitions by Great Santini

Occurs while engaging in sexual intercourse, the penis while inside the vagina, is at its utmost length and girth. Hence, The Full Slab.
Bro #1 "Ok so you banged that chick...how you think she's going to rate your performance to her friends?"

Bro #2 "Doesn't matter, I gave her all I got, I gave her the full slab"
by Great Santini December 29, 2011
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Occurs during sexual intercourse, when the male's penis is at its apex of stiffness, length and girth and as far as it can go into the female's vagina, the male then sticks his finger into the female's asshole. Hence, The Half Slab, Combo Chicken Breast.
Male - Whispers in the female's ear "That's the Full Slab" And sticks his finger into her asshole.

Female - Replies in reaction to the gesture. "No, that's the Half Slab, Combo Chicken Breast."
by Great Santini December 29, 2011
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