A more polite way of telling someone to F off or can be used as a way to dismiss something/someone…Originated in the Bronx, NY
Boogie: My landlord keeps asking me for the rent even though it’s not due until next week Pasquale: Just tell him to slap it easy and he’ll leave you alone
Phrase used to express enthusiastic endorsement of an idea, particularly if the idea pertains to the recent or imminent acquisition of goods or information. While some believe the term descends from "sop it up with a biscuit" or the practice of slapping someone upside the head, "slap it up" most likely refers to the literal action of placing a desired object on a surface with considerable force, as a means of presentational flourish.
"Governor, may I offer you a glass of eighteen-year-old single malt?"