'Chameleon'
Chameleons are probably best known for their ability to change their colour to suit their surroundings and that is certainly the sense in which Fish uses the metaphor. However, Chameleons do not change their colour to blend with the background, but according to their mood and temperature.
Songs with a link have explanations.
Maybe it's stating the extreme obvious, but this song seems to be about prostitution, where the lady is compared to the titular chameleon because she adapts her ways to the desire of her customer.
ReplyDeleteThe theme could then be the customer of such prostitute who falls in love with one, or at least sees much more into the encounter than she does (for her it's just a business transaction).
As a chameleon is a type of lizard, this would be a synonim.