What's in aid of?

What's something in aid of?

(British & Australian informal)

something that you say when you want to know why someone has done something I heard the shouting from the other side of the building. What was that in aid of? A present! What's this in aid of?

Common Names:

Name	Pronounced	Usage
Lucky	LUK-ee (English)	English, Indian, Hindi
Gavrilo	-	Serbian
Bojidar	-	Bulgarian
Saiful	-	Arabic
Shyama	-	Hinduism, Indian, Hindi
Egan	['i:gən]