Picket

[Sarah]

A detached body of troops serving to guard an army fromsurprise, and to oppose reconnoitering parties of the enemy; --called also outlying picket.

[Sarah]

someone who repeatedly says the word raw, usually in multiples of three. always a gentleman, they are always glad to offer you their spare top hat or monacle.
somone with two facebooks

[Sarah]

also known as 'picket boy','that good picket' and 'ye old picket'. derived from a personal joke between two friends....now is a well known phrase.

[Tina]

A person or group of people who stand outside a workplace or other venue as a protest or to try to persuade others not to enter during a strike.