2.Uncomplimentary term for make-up in general, used by people who don't like make-up, to annoy people who do.
Also see fake-up
2.What are you thinking, slapping all that slap on your face? It's gross!
1. Used to describe giving or taking something.
2. To slap it somewhere - Meaning to go somewhere
3. Slap something up - To create
2. "You guys tryna slap it to McDonalds?"
3. "Im finna slap me up a nice fat sandwich!"