Tree trunkin 

while a dude sits on a tree trunk and a chick sucks his dick

John - last night angela gave me a tree trunkin, i blew my load all in her mouth

Tree trunkin by misssuckit June 3, 2010

tree trunking 

Mindlessly defending, laughing at or admiring a person, typically someone of a celebration status.

Similar to how a treehugger defends trees even though the tree would not defend the treehugger.

My friend is always tree trunking Charles Barkley. He laughs at everything he says. Now that Shaq is also on the show, he can take turns swinging from their branches.

tree trunking by blkbam January 5, 2012

Tree Trunking 

Term used when a man with a huge penis rags a women hard.

Joey- Did you bed Kelly last nite
Pete- Yeah man i gave the biggest tree trunking you have ever seen. In the face!

Tree Trunking by Joel Rice March 23, 2006