You must be a member of Densa! Just blaming your parents! What does Densa stand for? Densa - Wikipedia Densa is ostensibly an organization for people insufficiently intelligent to be members of Mensa. The name Densa has been said to be an acronym for "Diversely Educated Not Seriously Affected." The name Densa is a portmanteau of denser (in the sense of stupider) and Mensa.