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make hay 

Storm's a coming, Cletus; we better make hay.
make hay by Garrick June 1, 2004

make hay 

A false claim of one's work ethic and amount of work done.
"We're you busy today?"

"You know me, I make hay all day"

"So, in other words, you left it all for me again?"
make hay by ScottyT311 September 19, 2016

Make hay while the sun shines 

To take advantage of a brief opportunity while it is still there. To not waste time.

The saying comes from farming communities. There would often be only a short time in which the hay would be ready to cut- reap too soon, and the hay would be too green. Reap too late, and you run the risk of rain ruining it all. Still very good advice.
I just got a good job for the summer- I don't know if I'll have one this fall, but I'll make hay while the sun shines and save up for the winter.

Make hay while the sun shines 

To take an opportunity to do something when the time and conditions are near perfect or available.

From agriculture, when farmers gather the long grass growth of summer to dry it to produce hay as winter feed for animals; The best time to cut and dry the hay is during sunny days.
A:"There's a sale at K-mart this week - You wanna see if the have something for your sister's birthday?"
B:" Sure - Might as well make hay while the sun shines, and get her something at cut price!"

Make hay while the sun shines 

To do something while you have the time to do it.
I had some free time in class, so I made hay while the sun shone and did the extra assignment.
More from Urban Dictionary

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
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