to strike a man's genitalia on another person's body, usually their face. Used with a mock latin accent, and generally no adjectives. Not unlike a turkey slap
Steve slapa Pete
Pete slapas Steve and Gabe face
Gabe slapa my face
Acronym for "Sex Lacking Awesome People Association"
An organization for people that don't get enough sex.
I joined SLAPA 'cos I wasn't getting enough poontang!