Monkey fucking a coconut 

When you see someone large operating a small vehicle or are working in a confined area.

That dude on that scooter, looks like a monkey fucking a coconut.

Monkey fucking a coconut by Wcmd March 15, 2016

monkey fucking a coconut 

Having sex with the toilet throw rug on the bathroom floor

He's been in the bathroom for a long time - I bet there's a monkey fucking a coconut in there, no doubt.

monkey fucking a coconut by Hodad Bonedaddy August 3, 2006