A form of crop dusting where you accidentally shit yourself. This smells so toxic that it is comparable to the spraying of Agent Orange from cropdusters during the Vietnam War.
"When had to let one rip in school, I had a Vietnam Crop Dusting the hallway. Can you bring me some clean pants, mom?"
When the sex is so raw and animalistic that it closely resembles warfare; often lasting insanely long amounts of time and/or scoring record O counts for both parties.
Yea man, me n MJ were vietnam fuckin the other night n busted the headboard again.