boner selfie Share definition Flag The act of taking a photo of oneself via a smartphone affixed to one's erect penis, as a substitute for a selfie stick. Who needs a selfie stick? I'll just take a boner selfie. It's 2016! boner selfie by SuhDewd April 11, 2016 0 0 Get merch Get the boner selfie mug. Buy Now — $32.95 See more merch