Petrified Seman Share definition Flag Seman on a peice of clothing or towel that has dried up and is now crusted on to said objects. I just found an old sock that is covered in petrified seman. Petrified Seman by Contazz March 6, 2010 0 0 Get merch Get the Petrified Seman mug. Buy Now — $32.95 See more merch