Noun
A park where live animals are exhibited.
(informal, figuratively) Any place that is wild, crowded, or chaotic.
The shopping center was a zoo the week before Christmas.
(informal, figuratively) A large and varied collection of something.
(US, military, slang) The jungle.
(slang) A zoophile.
Source: en.wiktionary.orgLife is a zoo in a jungle. Peter De Vries
Undressing her was an act of recklessness, a kind of vandalism, like releasing a zoo full of animals, or blowing up a dam. Michael Chabon
I love acting, but it's much more fun taking the kids to the zoo. Nicole Kidman
We can put women on Prozac and they will think they are happy, even though they are not. Disturbed animals in the zoo are given Prozac too, which rather suggests that misery is a response to unbearable circumstances rather than constitutional. Germaine Greer
There seems to be a general impression that to be known as normal in Hollywood is akin to being labeled as rare animal in a zoo. Irene Dunne
I view my own body as a petting zoo. I am the main attraction... And the only customer. Craig Ferguson