What is "humpin'"

"Humpin'" is a 1980 song by The Gap Band, from their fifth album The Gap Band III released as a single in 1981. The original B-side, "No Hiding Place", was originally released on The Gap Band II. The song had mixed chart success, only peaking at #60 R&B, but busting into the top-20 on the dance charts. "Humpin'" is a fan-favorite, featured on almost all of the band's compilation albums Like their previous release, "Burn Rubber on Me", "Humpin'" was later packaged and placed as part of a single with " Yearning for Your Love" as the A-side.