an equivalent of dope, awesome, delicious. Usually used for food, a
dish can be "slappin" like it's so good that if someone disputes its awesome godliness they are in for a slappin.
Can also be used in the form of a verb to describe something's
slappy awesomeness.
Yo you should head down to Dave's food
truck, the pulled
pork is slappin
I
love eating at that Hawaiian terryaki place, everything on the menu slaps