クリスマスケーキ

Japanese

Etymology

Borrowed from English Christmas cake.

(unmarried woman): An allusion to the difficulty of selling Christmas cakes when the festive occasion has passed.

Noun

クリスマスケーキ • (Kurisumasu kēki) 

1. Christmas cake
2. (figurative, humorous) unmarried woman above the age of 25, seen as no longer desirable.