from today's Word a Day:
coxcomb (KOKS-kom) noun
A conceited man excessively interested in his appearance and dress;
[A variant of cock's comb (a rooster's crest).]
Jesters in medieval courts wore a cap with red strips like those in
a rooster's crest. From there the sense of the term extended to a
vain, pretentious dandy. Today we would describe him as metrosexual.
Court jester, to Wilde dandy, to Beckam metrosexual? Hmmm. What's missing is the wit.