The evolution of the word "trap" in popular music has been a long and strange journey. References to dealing dope out of "trap houses" began popping up in the Southern rap in the '90s, and trap rap started to become a subgenre unto itself in the years following T.I.'s 2003 breakthrough album Trap Muzik. And then, at some point in the last few years, a very specific variant of that sound—the Lex Luger-led parade of spastic hi-hats and blaring synths—not only became the universal sonic shorthand for "trap," but leapt straight over into dance music. Now, the T-word sits side by side with "dubstep" as a descriptor for lurching, hip hop-influenced EDM. Given the etymology of the term "trap," there's something odd about attaching a phrase that describes lyrical content to the sonics—it's a bit like if 20 years ago, hip-house had spun off into a subgenre that white European producers had no compunctions about referring to as "crack house."