The rah-rah (or ra-ra) skirt is a short flounced skirt that originated in cheerleading and became popular among teenage girls in the early 1980s. As such it marked, as the Oxford Dictionary noted, the first successful attempt to revive the miniskirt that had been introduced in the mid-1960s. Later in the 1980s it was often worn with leather, denim or lace.
In the 1990s the mini came back into fashion in its own right, largely discarding the frills of the rah-rah. However, the latter did return again in Britain in 2008: "Eighties look is all the ra-rave".