Lollerblinds 

origins from "roller blinds". Keeping out LOL or fun like roller blinds keeps out the sun.
When a person is having his/her lollerblinds down, nothing seems funny. It could either be due to a bad day, or a lacking sense of humor.

I really tried to make her laugh, but she totally hard her lollerblinds down", "Wow, that joke really made her pull up her lollerblinds!", "That guy have had his lollerblinds down for the last couple of days"

Lollerblinds by jayds May 24, 2011

Lollerblind 

To have your lollerblinds down, or to be blind towards LOL.

dont even try to tell him that joke, he is lollerblind/having his lollerblinds down

Lollerblind by jayds May 24, 2011