Smack Hat 

Another term for a crash helmet.

A smack hat is similar in type to those worn whilst riding a lambretta or vespa. It is typically a visorless helmet that is most effectively positioned on the head by the use of a smack from the hand on the top of the helmet from a helpful friend.

A device to protect your head when it 'smacks' into an object.

Jimmy could really have hurt his head when he came off his scooter, but luckily he was wearing his smack hat.

Smack Hat by maadmaxxer April 22, 2010

Stack Hat Special 

A person who wears a bike helmit because they uncontrollably beat their head against a wall.

The bloke at the pub who was acting like a drunk was because he is Stack Hat Special

Stack Hat Special by Ms Happy 1 June 11, 2016

Sack Hat 

A sack hat is a baseball cap that has the following characteristics:

-Being old
-A hat that old people frequently wear
-Having a really old or outdated logo

-Being a blank hat of any color without anything else on it
-The front of the hat being softer than the rest of the hat
-Having mesh on the back half of the hat
-Instead of velcro or being a fitted hat, it has little buttons that you have to click in place on the back of the hat
-Having a tag that says "one size fits most"

-Jerry has a Dallas Cowboys hat from 1991. It has soft foam at the front and little buttons at the back. It was probably worn when watching Troy Aikman play in the Super Bowl. It is a sack hat.

-Darius has a St. Louis Cardinals hat with a 1920's logo on it, the back half being mesh with little buttons. It is also a sack hat.

Sack Hat by LaGarrius July 8, 2010

Stack uh hats 

A „stack uh hats“ is considering a even bigger „cap“ (a lie). It’s quite literally such a big cap that it mounts to a stack of hats. A big lie is a „stack uh hats“.

„What he said was a stack uh hats“

Stack uh hats by harryslaydeshaun February 15, 2023