When recieving a blowjob from someone with glasses, you pull out and cum on their glasses.

Windshield can mean two different things. The common usage for using windshield is on a front window of a car.
The second common usage for windshield is whether. The speed of wind, which is used on the news. I am sure you've heard.

The small, shark-fin-shaped portion of the bottom of a car's windshield where neither wiper blade can reach, thus resulting in a perpetual shark-fin-shaped area of filth.

When a man ejaculates on a woman's glasses while she is wearing them. She usually has her eyes open.

the act of a women giving such a deep blowjob while glazing her toungue across your balls as her mouth is all the way to the pelvis bone. The toungue acts as windshield wiper to your balls.

The round suction cup mark that a gps leaves on the inside of the windshield.

The residue that remains in your teeth during or after eating a meal. Often most pronounced when a piece of lettuce or spinach gets stuck in your teeth after consuming a salad.