English word birthday girl comes from English birthday, English girl
| Dictionary entry | Language | Definition |
|---|---|---|
| birthday | English (eng) | (intransitive, informal) To celebrate one's birthday. The anniversary of the day on which someone is born. [From 1570s]. The anniversary of the day on which something is created.. The date on which someone is born or something is created, more commonly called birthdate or date of birth. |
| girl | English (eng) | (transitive) To feminize or girlify. (UK, dialect, obsolete) A roebuck two years old.. (US, slang) Cocaine, especially in powder form.. (colloquial) A term of endearment. (see usage notes). (uncommon, card games) A queen (the playing card.). A female child, adolescent, or young woman; by extension, a young female animal. A female servant; a maid. (see usage notes). Any woman, regardless of [...] |
| birthday girl | English (eng) | A female (woman or girl) whose birthday it is. |