Friend-On Share definition Flag Something your crush says or does that you interpret as a come-on, but is actually just them being friendly "Dude, I am SO in, Jenny just winked at me!" "Hey, she winks at all her pals, it was a friend-on." Friend-On by Nationary January 31, 2009 0 0 Get merch Get the Friend-On mug. Buy Now — $32.95 See more merch