Noun
a wedge-shaped tent; usually without a floor or windows
Source: WordNetThe U. S. is a mere pup tent of a civilization. We've got two hundred years of stupidity behind us and we think we're right up there with everyone else who's been doing it for thousands of years. Frank Zappa
My earliest memory from childhood is of fishing with my father. And I remember vividly we were in a store, and we were buying a pup tent to go on our first camping trip. David Suzuki