an illegal underground mall casino. mainly made to be able to shop at malls AND gamble, malsinos are considered illegal by state. you would usually find them under someones house, in a large cave or in a spaced out area mined out.
"hey bro where were you last week?"
"i was at the malsino, there was a event going on then and i was invited, so i went."
"i was at the malsino, there was a event going on then and i was invited, so i went."
by shibruh November 08, 2020