stackhat 

An overly cool 1980's-1990's helmet made by Rosebank in Australia. Popular colours included fluoro yellow and green, white, and dusty pink. Parents were known to draw eyes on the back of the helmet to ward off the deadly 'magpie dive'.

Child is going for a bike ride.
Mother: "Don't forget your stackhat!"

stackhat by donkeyman01 September 26, 2008

stachatoralicious 

When a girl is way too hot for her age, thus having sex with her would be stachatory rape.

Oh my god, Bob's little sister is so hot, she's stachatoralicious.

stachatoralicious by Stengle April 16, 2006

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

slackhat 

A spinoff of the word "asshat".
Generally used towards someone who is lazy and/or a bit slow.

Coined by Rotharek.

"Dude, wake up you slackhat!"
"Damn slackhat".

slackhat by del August 29, 2004