Amish Plower

When you're doing a girl doggy-style, just when you are about to come, grab her hands and pull them towards you. This will force her head down to the carpet, so you will be able to shove her head around the carpet. May leave minor carpet marks.

Oh dude, I pulled an Amish Plower on Amy last night!

Mary, you'll never guess what Matt did last night!
What?
He pulled an Amish Plower on me!