Smack your hands against your body repeatedly, mainly the torso to chest area, and continue to smack hands on body and say "hambooooniiinngggg" in Rigby's voice from Regular Show.
Rigby: HAMBONINGGGG
Mordecai: No...
Rigby: HAMBONING WILL SAVE YOUR LIFE ONE DAY!!!! It'll be like "what! you tried to mug me?"
*proceeds to hambone for 20 seconds*
Mordecai: NO! We're not doing that, okay!? Okay!?
Rigby: Fine...
The act of boning in a hammock. Must be suspended at least ten feet above ground level to be accurate to the term. Socks are permitted, but that's all. A true hammboner must abide to the set rules of hammboning and share their passion with others. That is all.
Wow, wish I could go hammboning right now. My hammock just isn't the same without the stain.