a slab is comparable to a hoe, thot, swoop, pass-arround. A bitch with no morals when it comes to sex, she'll suck the whole team and let all the homies fuck.
Person A: *Shows a picture of a bad ass bitch on insta from the city*
Person B: Damn, she bad asf. Who that is?
Person A: That lil slab I used to fuck last summer.
Person B: Oh! that's the Jessica you was talking 'bout. I knew that bitch was slabbed out.
To eat with extreme verve and panache. To really slap on the proverbial feed bag. Usually best accomplished at local restaurants featuring a buffet or an "all you can eat" event.
Dude, I really slobbed at the buffet last night. It was harsh; Woke up this morning, brushed my teeth, shaved, and shat like an animal!