The phrase "boy friends" refers to friends who are boys. It means that the people being referred to are males who are friends with each other. Full definition
Now the question comes how to wear boy friend jeans? (outfittrends.com)
Online sites helping for easy meet find sexy girls for love, long term relationship with hot and sexy lady, married lady are seeking men for boy friend and one night stand. (adultxchat.com)
You can't go wrong with a good Boy Friend style sweater. (chadwicks.com)