befoul /bi-fowlˈ/

1. To make foul
2. To soil

• boss shots
• bossy
• bossyboots
• buffer stock
• buffer zone
• buffer zones
• buffet
• buffet car
• buffet cars
• buffeted
• buffeting
• buffetings
• buffets
• buffi
• buffing
• buffings
• buffing-wheel
• buffing-wheels
• buff-jerkin
• buff-leather
• bufflehead
• buffleheads
• buffo
• buffoon
• buffooneries