Railhead Share definition Flag In South Texas, where a female gives her man head on a railroad track (usually near a trailer park). Railroad Blow TPT Railblow Blow Track Dude, Shanay gave me railhead beforez school this morning. Railhead by E-Bra March 17, 2008 0 0 Get merch Get the Railhead mug. Buy Now — $32.95 See more merch