Actress Nicole Kidman has been frequently referred to as a "strawberry tart" in several of her films, most notably Far and Away and Moulin Rouge. Her characters were often called this behind their back by lecherous, exploitive, or just plain horny males. The expression refers to her red hair and general attractiveness. In both previously mentioned cases, Kidman's character was either a stripper or was posing as one.

Oops - upon rewatching Moulin Rouge, it seems that she is called a strawberry, not a strawberry tart. At any rate, the general sentiment is the same.