The same thing as a bromance but with girls. It often consists of hugs,sitting on each others lap, and or telling secrets. It's like a best friend, but more!!!
Girl: ya I told her the thing about him and me....
Girl 2: I thought we were in a sis-love! Why is she in it now?
Girl 2: I thought we were in a sis-love! Why is she in it now?
by Heyheyitsme May 15, 2013