literary someone who behaves as if they are more important or powerful than they really are.
Have you seen him over there, acting like a little tin god?
(little) tin god
A pompous person. My attraction for him waned after he spent the entire evening acting like a little tin god.Everyone on the school board acts like a tin god. It's so irritating!
a tin god
or
a little tin god
mainly BRITISH, LITERARY
If someone behaves like a tin god or like a little tin god, they behave as if they are much more important and powerful than they really are. So what are his qualifications for acting like a little tin god?