A fishing Hat (or other article of clothing) with copypasta phrase involving fish and women/sex/etc..
Originally "Women want me, fish fear me", there are numerous parodies, most notably:
[quote]
WOMEN FEAR ME
FISH FEAR ME
MEN TURN THEIR EYES
AWAY FROM ME
AS I WALK
NO BEAST DARE
MAKES A SOUND
IN MY PRESENCE
I AM ALONE ON
THIS BARREN EARTH
[/quote]
Another popular, shortened version reads:
[quote]
Man
I
Love
[/quote]