When someone has a paranoia that there are mice under their bed and/or furniture and actually only has the mice but can't handle the stress of it, one gets a **mental mouse** in his/her head when in schizophrenic episodes.
Person 1; Dan got so paranoid, he thinks he has mice under his bed.
Person 2: Yeah he has got a mental mouse going on there.
A type of thought experiment or task that is pointless and stupid but seems like it could be useful if its entire purpose wasn't to impress gullible people or deride people for being grounded.
Elon Musk likes mentally rotate objects in his mind. He talks a lot about how he'd like start a colony on mars, but its all mental rotation - there are lots of inhospitable places on earth to trial out such technologies but he's not interested in solving problems, just marketing.
The belief that you are correct no matter what and defending yourself as if your life depends on it.
Me: Bro your just wrong?
Blayne: no I’m not
Me: ok dude that’s just The Blayne Mentality
To put an NSFW image in someone's head when they don't want to think of that image.
Jason: Yo Joe! I heard Jenna fucked her sister!
Joe: Ew! Gross!
Jason: They had a threesome later with Lily!
Joe: Oh my god, please stop! You are mentally molesting me!
When something is so mad that you have to mix the words mental and insanity
"He actually did a backflip off the first floor. Mentality"
A particular attitude or way of thinking, especially one that you think is wrong or stupid.
(尤指被视为错误或愚蠢的)心态
a get-rich-quick mentality
一夜暴富的心态
I can't understand the mentality of people who hurt animals.
He buys everything on credit - he has this play now, pay later mentality.