Gene Kearns wrote:

http://en.wikipedia.org/wiki/Pinko


"Some of the most infamous uses of the term pink came during future
president Richard Nixon's 1950 Senate campaign against Helen Gahagan
Douglas: "She's pink right down to her underwear!" -- a play on the
fact that, at the time, pink was the usual color of women's
undergarments. Nixon regularly referred to her as "the Pink Lady", and
his campaign distributed political flyers printed on sheets of pink
paper."

LOL! do I remember that.

Pluse the ensuing jokes about "Dick" and "The Pink"

eh...no need to go further.