Gibeath-haaraloth literally translates as hill of foreskins.
This was probably the colloquial nickname given to a hill next to Gilgal where the circumcisions took place. Gibeath-haaraloth and Gilgal are two different names for the same place (see Joshua 2:9; Joshua 5:2).
3 So Joshua made flint knives and circumcised the sons of Israel at Gibeath-haaraloth.