Looking for certain definitions in "Frisco for Buddypress"

Hi folks, this is really easy, just now for me.

Theme
http://wordpress.org/extend/themes/frisco-for-buddypress
Implementation
http://egress.ws/

I’m redefining functions on my Buddypress installation, and this theme (it may be in the BP parent theme) contains header links that defines “Groups”. I want to change this definition to a different word. Does anyone know which file contains these definitions?

Thanks