PILES ON BIRTHDAYS is a phrase used to describe the feeling of having too many birthdays in a short period of time. This phrase can be broken down into two crossword solutions: PILES and AGES. PILES is a four-letter word meaning a large amount or quantity of something, while AGES is a four-letter word meaning a long period of time. Together, these two words form the phrase PILES ON BIRTHDAYS, which is used to describe the feeling of having too many birthdays in a short period of time.