Green’s Dictionary of Slang

-lizard sfx

[1920s+] (US) a person with a particular habit or type of behaviour; also used in combs.; thus chow-lizard, a person who eats a lot; couch-lizard, a person who frequently lies necking with his girlfriends on a couch etc .

In phrases

day lizard (n.)

[1920s] an unemployed tramp or beggar who practises as a minor con man.

lens lizard (n.)

1. a film actor; one who enjoys being filmed or photographed.

2. [1920s+] (US) a photographer, a film-maker.

lot lizard (n.) [SE (parking) lot]

[1980s+] (US) a prostitute who works at truck stops.

In compounds

tango lizard (n.)

[1910s] (US) a plausible, but untrustworthy womanizer, frequenting dancehalls to find his female victims.