not good 

(1) A terse and deliberately understated manner of expressing that something is less than hoped. (2) a way of understating a substantial problem, mess, or catastrophe.

Sometimes expressed with a suspenseful interlocutor such as "ummm," "errr," or a gesture of consideration like a glance or a finger on the lip.

Q: How was your first day at the marketing firm with your new boss?
A: I just got home from work after a day with my crazy boss, umm, not good.

Ex 2: Did you see that plane hit the tower? Wow, not good.

not good by Bernadette Olsen February 1, 2006

not good enough 

What I get told all the time by Urban Dictionary and my definitions like my friend's name. Maybe they will like this one?

Plz don't tell me its "not good enough"

not good enough by Swago1200 January 17, 2019

Not good enough for you 

No. It is. The answer? It's good enough for you.

Hym "No. The answer is not 'not good enough for you,' bitch. It's the ultimate answer. It's good enough for everyone."

Not good enough for you by Hym Iam June 7, 2024

a bit not good 

Used in the first episode of BBC's Sherlock, Sherlock says, after asking why a woman would STILL be upset by the death of her daughter, "Not good?". John Watson responds, "A bit not good, yeah."
Later, it became a fanfiction tag, usually on Archive of Our Own, depicting a character in a not very good mental state

Mycroft is A Bit Not Good
"That angst fic had me in tears. Sherlock was a bit not good and John was trying to help him but he was ALSO a bit not good"

a bit not good by Luna Holmes-Watson May 12, 2020

Ohhh Not Good (ONG) text

A text to the wrong person or containing subject matter that was not intended for the respective audience.

I sent an invitation for a date to my baby momma instead of my boo. I thought I was asking my boo about going to Applebees to get that Bourbon Street steak with the Oreo shake and then I realized it was the baby momma and immediately realized I sent the wrong text to the wrong person and wrote Ohhh Not Good (ONG) text. She knew what I did and asked for the child support money.

Ohhh Not Good (ONG) text by foxarpa January 18, 2022

Mom that is not good at parenting 

threatens to beat you, will yell at you if you say "i dont know" but sometimes tells you to say it, looks for things in your room to have a ascuse to scream at you, says they never tell lies (but lie about everything), gets so drunk to the point where they almost sleep with you for a whole night, will loose the things they take away from you and not give a shit about it (can be lost for even 4 months), gives you deppression and axiety but since she "knows everything" she just gives you pills, if you talk back at all she'll treat you like shit (dont forget she reminds you about it everyday), and thats not even a start.

my mom that is not good at parenting just threating to cut all my hair off in my sleep (true story)

Mom that is not good at parenting by chick-fa-le January 4, 2021

Reduce, you're coming not good to me 

A phrase, originally invented in Israel. One may use this phrase when another (which he dislikes) approaches him and/or requests something from him.

*MIKE HATES DANNY*

Danny: Hey Mike what's up?
Mike: Reduce, you're coming not good to me.

Reduce, you're coming not good to me by Elad .I. aka Kintaro and Johnny Fairplay March 18, 2005