bad boner day 

A day when your morning wood remains until bedtime. A very persistant erection that hurts and interferes with your ability to have a nice day, often caused by a long night masturbating or having sex. This can also be caused by, but less commonly, shoving a long object through the urethra.

Boss: You seem a bit irritated today - whats wrong?
Worker: Im just kinda having a bad boner day, sir.

bad boner day by Pooty__Toot April 7, 2008

National bad haircut day Feb 10

It’s a day for the people with bad haircuts

Yo denis it’s national bad haircut day feb 10

National bad haircut day Feb 10 by Marco even February 10, 2021

bad brain day

A day when nothing anyone says to you makes sense, nothing you say makes sense to anyone else (including yourself), following directions proves problematic and items which should be readily locatable cannot be found (or are found only after much searching on top of one's head).

I knew it was going to be a bad brain day when I finally located my keys in the drawer where I always keep them, my glasses on top of my head, and remembered only after entering the now empty garage that my wife had earlier mentioned that it was her yoga day, which meant she was taking the car.

bad brain day by maximo hudson June 29, 2009

Bad Head Day 

False justification for a bald person to look like crap. Most often used as an insult.

Man! Did you get hit by a bus, or are you just having a Bad Head Day?

Bad Head Day by Tagz February 22, 2009

bad heir day 

n. A day when one or more of your children does something bad ... very bad.

Why is Igor out on the window ledge mumbling about a hostage taking and some arrests?

Oh don't worry. He's just having a bad heir day.

bad heir day by gnostic1 October 25, 2010

conker's bad fur day 

the best n64 game known to man

conker's bad fur day is good

conker's bad fur day by wsxdeck April 1, 2021

bad knee day 

Similar to a bad hair day, but instead of having nasty looking hair, the victim has nasty looking knees. May result in dryness, stubble from shaving, rashes and/or birthmarks.

Most often used by women.

Wow, look at all that stubble. I'm sure having a bad knee day today!

bad knee day by Hazzat April 23, 2010