In Japan, a women over the age of 25 are often seen as used goods by Japanese men (Much like Christmas cake is "no good" after the 25th of December).
As a result, single Japanese women over 25 will often find a foreign partner, since Japanese men are no longer interested in them.
- "He loves his Christmas cake girls"
- "Shes a Christmas cake girl"
- "Since hes a Japanese guy, he wont be interested in her because shes old enough to be a Christmas cake girl"