Packing may refer to: Law and politics Jury packing, selecting biased jurors for a court case Packing and cracking, a method of creating voting districts to give a political party an advantage Other uses Packing (firestopping), the process of installing backer materials, such as mineral wool in service penetrations Packing (phallus), the practice of wearing a phallic object inside the clothing to give the appearance of male genitals Packing, in autism therapy, wrapping children in cold wet sheets Packing, also known as an O-ring or other type of mechanical seal, a term for a sealing material Packing problems, a family of optimization problems in mathematics See also Pack (disambiguation) Packer (disambiguation) Unpacking (disambiguation)