poshtitute

A sex worker with ideas above her station primarily employed by guys with insufficient personality out social skills to get a girl own their own merits. Someone who describes themselves as an escort or a call girl, rather than the hooker that she is.

Couldn't get a date then? Had to resort to bringing a poshtitute to the party.

Poshtituting

When a person goes onto Poshmark and shares their items into multiple share shows at one time hopping back and forth between the shows selling their items.

She shared items to the tray and left, she's probably poshtituting.