Breaking a blue pen 

Smurf homicide

I was just breaking a blue pen when you called

Breaking a blue pen by DeanGullberry69 August 14, 2019

once in a blue 

Shortened version of"Once in a Blue Moon"

I travel there once in a blue

once in a blue by Vista2Fit December 2, 2017

talk a blue streak 

To talk rapidly and copiously

He can sure talk a blue streak.

talk a blue streak by The Return of Light Joker February 9, 2009

I have a blue car 

Originating from internet forums where miscellaneous discussers made it easier to brag by just saying "I have a blue car"

Sure you got laid last weekend but I have a blue car.

I have a blue car by Sementman November 9, 2008

have a blue 

Australian term
When someone have a fight. Have a fight

They are gonna have a blue

have a blue by marrrria26 May 8, 2020

Slap me in a blue lidded bin and call me recycled 

When someone uses you over and over again

" oh I see how it is why don't you slap me in a blue lidded bin and call me recycled"

Slap me in a blue lidded bin and call me recycled by Mary Virginia July 15, 2019

Happy as a blue cat 

When you're calm out relaxation and serenity, not boredom.

Joe: You been watching movies all day?

Bob: Yeah, I'm happy as a blue cat.

Happy as a blue cat by Kremcoin January 7, 2011