Gilamonster

3 clues
Lizard of the Southwest
Bulky lizard from Bamako?
Giant poisonous lizard that's too lazy to pose any real threat to humans
Similar answers:
Amonstercalls
Batmonsterson
Cheatedamonster
Consternate
Consternation
Cookiemonster
Createdamonster
Createsamonster
Cruelfemalemonster
Dddmonstermovie
Dreamonstermash
Famemonster
Gilamonster
Godsandmonsters
Greenmonster
Headmonster
Hilomonster
Larknestmonster
Littlemonsters
Lochnessmonster