wind line

During those times when the sea breeze doesn't come all the way to shore, the "wind line" is the shoreward edge of the sea breeze. At the "wind line" the ocean's surface changes from glassy to rough, and this boundary line can sometimes be seen from shore.

We paddled our sailboards out to the wind line.

Cheeks to the wind

Cheeks to the wind describes the act of a woman going to the toilet outside. Aptly named because of the fact that your butt cheeks are literally exposed to all the elements as you squat in the least ladylike manner.

‘Yo where’s J-Lo?’
‘She’s behind that car, cheeks to the wind’
‘Jeez dude it’s snowing’