It has nothing to do with the huge Fetty Wap hit “Trap Queen”. Trap music is a style of music that has been around since the early 90’s but has recently made a revival in the hip hop world. Its stlyle has aggressive lyrical content and sound, and the instrumentals are brought by 808 kick drums or heavy extended sub-bass lines, double-time, triple-time and other faster time division hi-hats, layered synthesizers, and “cinematic” strings. As Laymens puts it, trap could be described as a recipe.
1/3 hip hop (tempo and song structure similar) – however vocals are usually pitched lower or higher
1/3 dubstep (similar drum arrangements, different builds and drops)
1/3 dub (Low frequency focus and strong emphasis on repetitiveness throughout a song)