when used in connection with calling a person a prop, prop means the person in question is fake, false, slow-witted, dim or a flake, insinuating that they are not a real person, just like a prop gun isn't a real gun, for example.

to give recognition to another person, usually for behavior

originally, a fake object used in movies to represent the real object.

Numbers 1 and 3 on a rugby team. # 1 is the loosehead prop and #3 is the tighthead prop. Their job is to support the hooker.

A loosehead prop lines up for the scrum on the left hand side of the hooker in the front-row, and the tigthead on the right hand side of the hooker. When the two front-rows interlock with each other for the scrum, the loosehead has one side of his head out of the scrum (the left side), and scrummages against the opposition tighthead. The tighthead has both sides of his head in the scrum, and scrummages against the loosehead.

A "prop" is any item, either hand held or free standing, that is not nailed down on a theatrical or film set.

The term originates from the basic inventory of the company being the "property" of the owner.

General use is to give authenticity to a performance by adding a prop to give the actor "business". Interacting with a brush, sitting at a dressing table in a scene sets up the "suspension of disbelief" along with sets and costuming.

A dwelling, home,or residence.

A dry ejaculation of seminal fluid or a lack thereof.