Someone who focuses on preparedness, generally for various worst-case scenarios like peak oil or armageddon. Sometimes used to avoid the more loaded term survivalist.
a person who believes a catastrophic disaster or emergency is likely to occur in the future and makes active preparations for it, typically by stockpiling food, ammunition, and other supplies.
When a silly cuckhold invites a deliciously hung black man (bull) into his bedroom to beastfuck his wife. However, before the ceremonies can begin, the silly cuckhold must "prep" the bull, meaning service him orally until he is ready for insertion into the young and ready wife.
While sexy Veronica lay on the bed, while Little Jimmy was vigorously prepping the bull, the well hung gentleman, Chester, for his deep-dicking session.