Paul Giamatti

I remember when I was at the first showing of 'John Dies at the End' at Sundance, and I was talking to some of the people in the standby crowd who were outside and didn't have tickets. They were just waiting in line to see if they could get in. It was this whole gang of die-hard sci-fi wacko people, and they were just fantastic.

American Actor

Meaghan Jette Martin

If you were there behind every family's closed doors, everyone's a little wacko. Chances are that your family is no weirder than the next family or than the other girl at school's family. Everyone can be quirky at times, and I embrace that, personally.

American Actress

Ted Cruz

It has been suggested that those of us who are fighting to defend liberty - fighting to turn around the out-of-control spending and out-of-control debt in this country, fighting to defend the Constitution, it has been suggested that we are wacko birds.

American Politician

Jon Lovett

When I was a kid, all I knew about Michael Jackson was that he was crazy. He had a monkey named Bubbles and some kind of oxygen chamber, and he used to be black, but he made himself white, and he was nuts. That was Michael Jackson in full. Wacko Jacko.

American Producer

Jeff Beck

The fun that I've had needs to be seen on the screen. I like the thought of a bunch of people laughing at what I laughed at - because my life is surreal, completely wacko.

British Musician

Norman Schwarzkopf

I am an environmentalist, but I'm not a wacko environmentalist. I believe that mankind and nature can live side-by-side for the mutual benefit of both.

American General

James Fallows

Environmental disaster is the gravest threat to China's continued development. That's according to me, but it is not some wacko view.

American Journalist

Margaret Trudeau

I am not a weirdo, a wacko, or an eccentric for wanting to do good, honest work on a day-to-day basis.

Canadian Author

Joe Jackson

How could they call him wacko? He's sold more records than anybody in history.

American Businessman

Used mainly in casual conversation rather than in formal writing or speech.

Informal Speech

Can be considered rude or offensive, so use with care around sensitive topics.

Potentially Offensive

In some cultures, using terms like 'wacko' can be seen as making fun of mental health.

Cultural Sensitivity

The adjective form is also informal and usually inappropriate for formal contexts.

Colloquial Language

Describing someone's ideas as 'wacko' can be dismissive and hurtful.

Emotional Impact

Often coupled with other adjectives to emphasize how bizarre or unusual something is.