What is your favorite idiom ?

[ChiroDoc]

The modern classic:
"Busier that a one-legged man at a butt kicking contest."
(come to think of it, that's not really an idiom, but several others aren't either..)

 

[TeePee]

Once in a blue moon

 

[gruntlabor]

What's good for the goose is good for the gander

 

[rwb]

When you are dead, you don't know it! It is just hard on your friends and relatives. It the same when you are stupid.

 

[gruntlabor]

When you are dead, you don't know it! It is just hard on your friends and relatives. It the same when you are stupid.

.. and the same when you are gross.

 

[spookycat2]

A couple that my ex father-on-law used to say-

Windier than a bag of a$$holes

Dumber than a bag of hammers

 

[JustDave]

Alas AI has replaced writing ...

Do students still write research papers?

 

[gruntlabor]

The proof's in the pudding.

SOURCE:
The proof of the pudding is in the eating. --14th-century English (re taste testing meat puddings)

 

[ChiroDoc]

She's as cute as a bug.

 

[gruntlabor]

... as easy as falling off a log. --New Orleans Picayune, 1839

... never the twain shall meet. --Rudyard Kipling, 1892

 

[againstthegrain]

"he doesn't know whether to chit or go blind"

 

[bowmore]

Do not your alligator mouth overload your canary a$$

 

[rwb]

"The Lord Willing and the Creeks don't rise!" Often misunderstood. The Creeks are Georgian Indians and the fear was a possible hostile upRISING by the Indians. Not the rising or flooding of a stream or creek.

 

[BJintheUK]

For men whose trousers are rather short in the leg;
Someone died in your family? I see you're wearing your trousers at half mast
Did your trousers have a row with your ankles?

For men who forgot to zip up their fly;
You're flying without a licence
Your brains are hanging out
Your ignorance is showing

There are loads of sayings about someone being thick;
A sandwich short of a picnic
A brick short of a wall
Not the sharpest tool in the box
The lights are on but no-one's home
A saucer short of a tea set
If they had a brain they'd be dangerous
A penny short of a pound


and many many more

 

[horseless carriage]

For men who forgot to zip up their fly;
You're flying without a licence
Your brains are hanging out
Your ignorance is showing

"There's Something About Mary."
The 1998 comedy film There's Something About Mary features a well-known, highly cringeworthy scene where the main character, Ted (Ben Stiller), has an incident with his zipper. The humour of the film is derived from a series of awkward situations and misunderstandings related to the main character's pursuit of Mary. (Cameron Diaz).
The phrasing "something about mary, equating to open flies" is a personal or niche joke referencing both the film and the common idiom.

 

[Jazzy1]

Not my circus; not my monkeys.

 

[gruntlabor]

For men whose trousers are rather short in the leg;
Someone died in your family? I see you're wearing your trousers at half mast
Did your trousers have a row with your ankles?

"Is there a flood?"
Or in the case of trousers too long:
"Careful you don't trip on those."