Biting off more than you can chew...

[Lohrenswald]

I guess you could say that he wasn't the sharpest pencil in the drawer.

same, except knife

 

[Lexicus]

He wasn't the brightest bulb in the uh bulb...thingy

 

[Timsup2nothin]

Oh, hey, that reminds me of a well used saying in my life.

The tall grass gets mowed.

 

[Gori the Grey]

The early bird gets the worm . . .
. . . but the second mouse gets the cheese.

 

[Lexicus]

"The field mouse is fast, but the owl sees at night"

 

[Peuri]

same, except knife

I feel kind of bad now, I'm pretty sure he had some mental problems. All his moomin trolls weren't in the valley. Eh, that doesn't translate very well...

 

[BenitoChavez]

The early bird gets the worm . . .
. . . but the second mouse gets the cheese.

And the third wheel breaks the fourth wall by taking the fifth.

Ok that made no sense.

 

[Lexicus]

I feel kind of bad now, I'm pretty sure he had some mental problems. All his moomin trolls weren't in the valley. Eh, that doesn't translate very well...

I mean, at the end of the day he violated a very basic gun safety rule so it is what it is.

 

[yung.carl.jung]

The owls are not what they seem..

 

[red_elk]

Oh, you mean when Christmas and Easter fall on the same day.

Yes, after rain on Thursday.

 

[rah]

I don't think so. Carrying water for someone likely comes from American sports and was coined rather recently.

I'm betting more Gunga Din circa 1890

 

[red_elk]

How did that happen?
Like, is there a reason thursday is used in that expression?

Don't know. Brief searching gives popular version about Slavic god of rain and thunder, Perun, who was associated with Thursday.
Like, people were asking gods for the rain and waited for it in desperation.
May be it's somehow related to your Donnerstag too. But in Russian, thursday has nothing to do with thunder, it's just 4-th day of the week.

 

[Phrossack]

„Die schärfsten Kritiker der Elche waren früher selber welche."

"The sharpest critics of moose used to be moose themselves." The rhyme is lost in the translation, making it less silly than it should be, but it's a good line anyway. I can be especially harsh towards those who are like whatever I was once like.

 

[red_elk]

- Seven Fridays in a week (about someone irresponsible)
- Wolf is fed by his legs (usually about a job where you have to move a lot)

 

[Ferocitus]

LITHUANIAN
Dabar ožka ateis prie vežimą!
(Literally: Now the goat is coming alongside the wagon.)
Now we're really going to get moving.

Krito kaip šudas nuo šakes.
(He) fell like a turd from a garden fork.

AUSTRALIAN
Gold teeth and laugh lines around his pockets.
Wealthy, like a used car salesman.

Mutton dressed as leopard.
Someone who wears tight-fitting patterned stockings and tops, but probably shouldn't.

Maggot.
An umpire who awards a penalty against your team.
I heard this screamed by a 70ish woman supporter sitting next to me:
"You're a maggot! Even your Mum thinks you're a bloody maggot!"

A jockey who prevents a horse from winning.
(I.e. a small loathsome creature on a dead animal.)

Wrap your laughing gear 'round that.
Please partake of the excellent beverage I just brought you.

Crook as a dog.
Feeling too ill to go to work.

I’m so hungry I could eat the crotch out of a low-flying duck.
Famished.

 

[Lohrenswald]

reviving the thread but sod it

"taking something for good fish"

(insert stuff for "something, often "what he/she said")

 

[Phrossack]

"You couldn't pour water out of a boot if the instructions were written on the heel."

 

[Truthy]

The owls are not what they seem..

There's a fish in the percolator

 

[hobbsyoyo]

pain in my ass

 

[Timsup2nothin]

pain in my ass

Don't let that crocodile mouth overload your hummingbird ass.