Only to be stated at the very end of a phonecall between to pals that are in no way sexually aroused by eachother's masculinaty. Just friends ...very, very good friends.
Male replacement of "I love you" shared between girlies at the end of a natter.
Friend 1: "alright mate, I'll come to your gaff about 4ish"
Friend 2: "sweet fam', catch you in abit?"
Friend 1: "safe geez ...in the bum"
Friend 2: "in the bum"