(neologism) The combined celebration of one's birthday and one's anniversary, especially when the two individual events are near each other in date.

plural of birthaversary

A beating given to someone on their birthday, typically of a number corresponding to their age.

plural of birthday bump

plural of birthright citizenship

(Singapore, Malaysia, Philippines, chiefly in the plural) A Chinese yi mein noodle of a kind eaten on birthdays to celebrate a long life.

plural of birthday noodle