We don't have synonyms for lapdance yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are tapdance, lap dance and lap-dance.
(n) :
Alternative spelling of lap dance. [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.]
(v) :
Alternative spelling of lap dance. [To perform a lap dance.]
(n) :
Alternative spelling of lap dance. [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.]
(v) :
Alternative spelling of lap dance. [To perform a lap dance.]