You can thank rap duo Das EFX for the string of slang words ending in "-iggity" that permeated the realm of normal speech in the ‘90s (think the ever-popular phrase, "that's the bomb diggity".) Das EFX, composed of Krazy Drazy (a.k.a. Andre Weston) and Skoob (a.k.a. Willie Hines), who were both raised in the Brooklyn borough of New York City, formed when the pair met at Virginia State University in 1988. Krazy Drazy and Skoob bonded over their shared boredom (their school wasn't exactly teeming with opportunities to break into the music business) and love of forming clever rhymes out of seemingly gibberish words. Das EFX showcased their unique style of rap that integrated pop culture references with just plain nonsensical phrases at a talent show by EPMD, and although the duo didn't win, they did score a record deal with the label's West End imprint as part of the Def Squad protégés.

Das EFX began working on their debut album, recorded between commutes to New York and Virginia, released in 1992. Dead Serious showcased Das EFX's lyrical flexibility and was an immediate success; the album continues to influence hip-hop to this day thanks to its clever tongue-twisting rhymes. Dead Serious' single, "They Want EFX," propelled the album into platinum status by soaring to the Top 40 in the pop and R&B charts. Not wanting to limit their potential, Das EFX went in a different direction for their sophomore effort. Released in 1993, Straight Up Sewaside featured deliberately slower lyrics than Das EFX's first album and was slightly less successful, although it did reach gold status.

In 1995 Das EFX released their third and least successful album, Hold It Down, on the heels of label EPMD's nasty breakup. The pair took a three-year hiatus from the studio but remerged, much to the happiness of their devoted (but smaller) cult following, in 1998 with Generation EFX. Das EFX continues to release under-the-radar albums, just as their fans like it.