Your Fly Is Open

what your gf/friend tell u when u had a huge boner, but they dont want to say it outloud-or- when your zipper of your pants is open

jone: damn that girl is hot
kyle:dude your fly is open
jone:no it isnt...oooh ok thnx dude what if that girl came me and saw my bone

By Bamby

Define Your Fly Is Open Meaning