1. To strip down or disassemble on the spot to clean
2. To douche in a field
3. Emergency cleansing
1. My truck was running lousy so I had to stop and field douche the carb.
2. Wo! look at that cow over there, it really needs a field douche.
3. Get out the car and field douche that thing bitch, your gettin stank all over my upholstery.