He is an 'institution' in local politics. [=he has participated in local politics for such a long time that people consider him to be a regular part of local politics]
She committed herself to a 'mental institution'. [=a hospital for people with mental or emotional problems]
The play has become something of an 'institution' on Broadway.
(..) off of the belt. That would be... Wouldn't that be the ultimate thing? To be naked and still be able to do this. I think that would really help a lot. A mental institution? You know what they do in there? Did you see Cuck oo's Nest? They put those electrodes in your head. (..)1991 TvShow: Seinfeld Title: The Truth Season: 3 Episode 2
(..) Was she there? No. No, she wasn't. - You didn't get my papers? - No, I didn't. Well, where is she? A mental institution. Why is it so difficult, uncomfortable to be naked? It's because we have clothes on... ...you can always make those little adjustments, which people love to do. (..)1991 TvShow: Seinfeld Title: The Truth Season: 3 Episode 2