We don't have synonyms for lap dance yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are tapdance, tap dance and lapdance.
(n) :
An erotic form of entertainment, typically at a men's club, where a naked or nearly-nude performer straddles a customer and moves in a rhythmic, sexual manner over their lap.
(n) :
An erotic form of entertainment, typically at a men's club, where a naked or nearly-nude performer straddles a customer and moves in a rhythmic, sexual manner over their lap.