The act of masturbating whilst watching someone else take a shit, or the act of taking a shit whilst someone watching masturbates
Man, my wife is a dirty bitch - we did some serious lumberjacking last night! She squatted over a glass coffee table & took a shit while I was underneath, masturbating furiously!!
Whilst Double Penetrating a girl, The dick in the ass goes in as the dick in the pussy comes out. Like the old school saws that the lumberjacks used back in the day.
Dude, last night, me and my homeboy were totally lumberjacking that bitch. We had her screaming everything with our perfect form!
Two naked, erect men stand facing each other with their penises touching, head to head. Both men grab the unified boners with both hands, put the fists together, and move them back and forth as a single unit as if sawing down a tree with a two-person saw.
Man, I think Dave gave me a rash from too much lumberjacking last night. We should have used more maple syrup...