don't bring a gun to a knife fight 

To bring a knife to a gun fight; to be inadequately prepared for something.
Likewise, bringing a gun to a knife fight,
To overreact and overthink Petty situations

You don't bring a gun to a knife fight as it isn't a serious matter. it isn't a matter of your life and death or your money and legacy.
He brought a knife to a gun fight that day when he was watching everyone else's presentations

don't bring a gun to a knife fight by InformationLibrary December 2, 2017

Don't forget to bring a towel 

Also, said as a response to, "I'm gonna go drop the (Cosby) kids off at the pool." as a way to remind someone to make sure there is toilet paper.

Person A: "I'm gonna go drop the Cosby kids off at the pool."
Person B: Have fun, don't forget to bring a towel!

Don't forget to bring a towel by JARNYC January 23, 2008

Don't turn a cough in to a coffin 

To make a situation worse by moaning about it before it has reached its natural conclusion.

"This bonfire night is shit. It's 9.30 and we haven't seen any fireworks yet"
"Chill out, don't turn a cough in to a coffin"

Don't turn a cough in to a coffin by tytybo November 8, 2011

Don’t try to teach a pig to sing 

Don’t try to teach a pig to sing; it doesn’t work and it annoys the pig. Basically don’t bother teaching a stubborn person a life lesson if they’re not gonna learn from their mistakes anyway. They’re still going to keep making the same stupid mistake and expect a different result every time.

Due to Nicole’s stupidity for the last decade with the “edgy” ex-boyfriends and getting arrested multiple times, she’s never going to learn to grow the fuck up and never learn lessons in life. Don’t try to teach a pig to sing.

Don’t try to teach a pig to sing by rosenovarocks August 13, 2021

T to A ratio 

When a woman's titty to ass ratio is not proportionate.

"Damn, shes pretty hot from the waist up but her T to A ratio is way off."

"That bitch is put together wrong, her T to A ratio is no good."

T to A ratio by Willholden April 28, 2009

Don't Have a leg to stand on

Not Having any witness or evidence.

Him: i will tell your dad what u did.
Her: i don't care. You don't have a leg to stand on.
Him: oh! Fuck you!

Don't Have a leg to stand on by JonSnowKnows June 1, 2020

you can lead a horse to water, but you can't make it drink 

Something that you say which means you can give someone the opportunity to do something, but you cannot force them to do it if they do not want to.

I made all the arrangements, bought the ticket, and even took him to the airport, but he just wouldn't get on the plane. Well, you can lead a horse to water, but you can't make it drink.

you can lead a horse to water, but you can't make it drink by brucelennon August 21, 2016