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...
Hagboy - An effeminate , politically left-leaning male, with tendencies toward social disruption in the name of any liberal cause or agenda (see: Antifa) Extremely vocal and opinionated, judgmental and easily agitated when faced with opposing ideologies or political viewpoints. Occasionally destructive, threatening and intimidating in large groups, unless confronted with actual men. Esp. Right-wingConservative men
A group of Antifa Hagboys assembled on the corner, attempting to intimidate passersby