Indian washer fluid

To defecate on the front windshield of your car, sit inside without wiping, then turn the wiper blades on the highest setting.

“I finally got those bugs off my windshield!”

“How’d you do it?”

“I used some Indian washer fluid.”

“Haven’t heard of it.”

“I’ve got some left over. I’ll clean your windshield!!”

*cleans windshield*

“Oh.”