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...