Cuoco has a large moth tattoo located in between her shoulder blades. During an appearance on The Ellen DeGeneres Show in 2016, she explained that she got the moth to cover up another tattoo that was previously there: the date she and her ex-husband, Ryan Sweeting, got married in Roman numerals. Cuoco and Sweeting got married in December 2013, but they split up less than two years later.
"The significance is it was big enough to cover the numbers," she told the host, half joking. "It's just what I picked out when I was there."