AKA a lap or LD. Any more-or-less intimate performance that a female dancer does for you alone for additional money with you in a sitting (or lying) position with your pants up. Almost always advertised as involving some form of contact. A LD may be totally public or completely private or anything in between. (Lowlander)

A form of adult entertainment where a woman dances provocatively in the "lap" of a customer, often while wearing little or no clothing.

A lap dance is a specific type of erotic dance offered in some strip clubs or (somewhat more formal) gentlemen's clubs in which the patron is seated, and the dancer is either in immediate contact (contact dancing) with the patron, or within a very short distance. Depending on the local jurisdiction and community standards, lap dances can involve touching of the dancer by the patron, the patron by the dancer, neither, or both; the dancer may be naked, topless or fully clothed where the club is located. Variant terms include couch dance which is a lap dance where the customer is seated on a couch, and bed dance where the customer lies down.