grass, clover, alfalfa, etc., cut and dried for use as forage.

grass mowed or intended for mowing.

Slang .

a small sum of money

Twenty dollars an hour for doing very little certainly ain't hay.

money

A thousand dollars for a day's work is a lot of hay!

Slang . marijuana.

to convert (plant material) into hay.

to furnish (horses, cows, etc.) with hay.

to cut grass, clover, or the like, and store for use as forage. ?

a roll in the hay

Slang . sexual intercourse.

hit the hay

Informal . to go to bed

It got to be past midnight before anyone thought of hitting the hay.

in the hay, in bed; retired

esp. for the night

By ten o'clock he's in the hay.

make hay of

to scatter in disorder; render ineffectual

The destruction of the manuscript made hay of two years of painstaking labor.

make hay while the sun shines

to seize an opportunity when it presents itself

If you want to be a millionaire, you have to make hay while the sun shines. Also, make hay.

noun

chaff , feed , fodder , forage , grass , herbage , money , provender , swath