Will Out 

To make plans to attend a party, then come up with a lame reason to not show up at the last minute.

I can't believe you're going to "will out" to go fill out bubble sheets, especially after you helped plan the party.

Will Out by Han Sol0 March 1, 2009

truth will out

the favourite hashtag catchphrase of embittered victim mentality individuals, chasing conspiracy theories and other such pointless nonsense.
Generally quoted alongside other hashtagged crap like corruption brown envelopes snouts in troughs

Truth Will Out "The toxic plans from my toxic councillors to raise council tax won't affect me, I'm unemployable. But I'll stir everyone up about it anyway #truthwillout"

truth will out by scattybird July 26, 2018

Life will out 

No matter what has happened, life is always fighting to win when faced with a challenge. It will always find a way to continue.

Your existence is an expression of a cosmic law that says “life will out”- Joseph Campbell

Life will out by dckrstr August 27, 2022

It Will Buff Out 

Literally means "Everything's cool, you will forget about it soon enough" often used in a non comical situation but at its mention, changes it into a comical one. First used and developed by Joey Brozonez and Troop 51.

Colin: damn, my dog was just killed by a C-ville punk (starts crying)

Joey: "It will buff out"

Group: Hahahahahahahahaha

Colin: (Cries harder)

It Will Buff Out by ERnwICh March 6, 2013

It will polish out 

to try to hide the fact that something is damaged beyond repair, by saying it will polish out.

she crashed her husbands car, it is a write off but to ease the blow she tells him it will polish out

It will polish out by CaLviNx December 10, 2012

When the cat is away, the mice will come out and play

An expression referring to a married couple having sex while their kid is at a friend's house, or at school, or a sleepover, etc.

Fish: Dude what happened?

Mike: I walked in on my parents having sex and my mom looked at me and said, "When the cat is away, the mice will come out and play."

When the cat is away, the mice will come out and play by Alfred Miller September 27, 2009

I will come out on top 

Just you all wait and see.

Why don’t you all just drop dead?

I will come out on top. Soon enough

I will come out on top by Zatarain’s Root Beer Drinker February 28, 2021