We don't have synonyms for los vegas yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are las vegas.
(n) :
Misspelling of Las Vegas. [A desert city, the county seat of Clark County, Nevada, United States, known for its large hotels, extravagant entertainment and dining, and gambling.]
(n) :
Misspelling of Las Vegas. [A desert city, the county seat of Clark County, Nevada, United States, known for its large hotels, extravagant entertainment and dining, and gambling.]