Generally a derogatory term used to describe a male (though it can often work for the appropriate
female as well). The term is derived from the straightness of a flag pole, therefore a man who is a flagstaff is extremely
straight and shows this through his treatment of
girls in his life. An example of this is when a
guy ditches his friends to go watch a chick flick to impress some girl. Similarly a girl could be a flagstaff when she ditches her friends to go watch a sport to which she doesn't even know the rules only to impress some
guy. Whipped is a term that is used similarly, however whipped generally refers to the dominance of the significant other whereas flagstaff refers to a personality trait possessed by the
one who is being whipped (more specifically, a flagstaff will be a flagstaff no matter who his significant other is whereas
one who is whipped may only be so because the significant other demands it).