Tackno is a blending of two musical genres - Techno and tacky bullshit pop.
The word Tackno is the blending of two of those words: Techno + tacky = Tackno
Jon: I must say, I am a big fan of that group Cascada.
Danny: Lame - Cascada are the definition of Tackno mate.
Jon: Yeah, but I just like the big arse on the singer. Bubble butts HOOOO!!