What'a a 5150?

Search: 5150

Why: In Ryan O'Connell's "Top Ten Celebrity Excuses for Acting Completely Bat Shit Insane" on Thought Catalog (I wasn't exaggerating):

Liar: Mischa Barton

Bullshit Meter: 9

Remember when Mischa Barton was placed under a 51/50 and spent two weeks in a mental hospital last year? Now, she’s telling everyone that it all stemmed from having her wisdom teeth removed. She explains, “I’d had enough (of the pain) and I went to the hospital. I am terrified of needles and they wanted to pump me full of drugs and I said, “No, absolutely not. I don’t want to be here,” and got into a fight with the nurses, and that led to my 5150.’ Okay, Mischa. No one’s going to believe that you’re afraid of needles because you look like Amy Winehouse’s wacky cousin. Also, it’s hard to believe that someone could be placed under a 51/50 for simply arguing with a nurse. Liar, Liar, skinny jeans on fire!

Answer: An involuntary psychiatric hold! Police code for "crazy on the loose"!

CALIFORNIA WELFARE AND INSTITUTIONS CODE, SECTION 5150, second paragraph:

"... an application in writing stating the circumstances under which the person's condition was called to the attention of the officer, member of the attending staff, or professional person, and stating that the officer, member of the attending staff, or professional person has probable cause to believe that the person is, as a result of mental disorder, a danger to others, or to himself or herself, or gravely disabled."

Source: Urban Dictionary, Wikipedia

The More You Know: Also the name of the 1986 Van Halen album that featured "Why Can't This Be Love," and also the name of a song on it.