What is old hat?

Old men who drive too slow, or shouldn't still be driving at all. The ones who always wind up in front of you.

"Trisha got stuck behind a little old man in a hat, and her ten minute drive turned into an hour."

old hat - video

A hat that is for old men and woman that are older than 80, that have grey or white hair.

"Hey look at at that old fogey hat, it will be perfect for your grandfather!"

An little old woman in a HUGE old car wearing a big floppy hat, the hat is about all you can see behind the wheel of the gigantic car.

Be careful when traveling the Garden State Parkway down the shore, you're sure to run into an old hat or two!

An alteration of the term new shoes, meaning to burp.

Fred: (BURP)
Paul: 'old hat!'

someone that is a bit emo. could possibly be a lesbian, due to quirkiness. loves panic at the disco. has never read "where the wild things are", and plays bass for rockband.

That girl Maegan, she's old hat! Just look at her!

I couldn'y find a new one, so I used the old hat from last night.

Vulva or vagina, esp. of a lady the senior side of 35. Popular term in the Victorian era.

Be careful dismounting that boneshaker, Delilah, lest the world and his dog see your old hat.

Refered to when something has been brought up, or posted on forum multiple times.

"this is such an old hat, find something original"

Something so well known and established that its practice isn't anything novel or interesting.

Knock knock jokes are rather old hat nowadays.

Picking up girls at clubs is old hat for him.

bell bottom jeans and elevator shoes were considered old hat at one time, but now they're back in style.