pkr.

Noun

packer (plural packers)

1. A person whose business is to pack things; especially, one who packs food for preservation
   • He works as a pork packer.
2. A software program that compresses code or data.
   • Many times, the malware authors will use packers and even encryption tools to disguise their software […]2009, Harlan Carvey, Windows Forensic Analysis DVD Toolkit
3. (US) A ring of packing or a special device to render gastight and watertight the space between the tubing and bore of an oil well.
4. An artificial penis or similar object worn by a drag king, trans man, etc., inside the trousers.
5. (New Zealand) An object inserted to hold a space open for the purpose of alignment; a spacer or shim.
6. (dated) A kind of trunk for luggage.

See all 9 meanings of packer