The Titans are a group of young superheroes.
Whilst these references where made at the same time the Teen Titans TV series was airing, the show isn't canon with the DCAU, having too many contradictions with established DCAU canon. The team referenced in Static Shock would very likely be an entirely different line-up to the actual show, possibly the incarnation of the cancelled mentioned series.
Around the 1990s, production of a TV series featuring the Titans was put in development for being part of the DC Animated Universe. Artist Tommy Tejeda made some art concept for the planned series. The series was supposed to connect Batman: The Animated Series with Superman: The Animated Series. Despite this, plans never materialized in favor of the production of Batman Beyond.