#udl

What does "udl" mean?
UnhasDaLisi, UniãoDeLamas, UltraDJsLV, UmDoLaci, UnterDenLinden, und_draus_lernen, UnDietLife, UrbanDogLife, unten_den_linden, ull_de_llebre, UnDíaLoco, UvéaDuLoup, UniversoDaLuta