The phrase identifies attire intended to replicate the appearance of a prehistoric female for the occasion of Halloween. Examples may include outfits featuring animal prints, faux fur, and accessories such as clubs or bone jewelry, aiming to evoke a Stone Age aesthetic.
The appeal of this costume choice lies in its simplicity and recognizability. It allows for creative interpretation and can be assembled from readily available materials. Historically, such representations draw from popular culture portrayals of early humans, often exaggerating certain characteristics for comedic or dramatic effect.