cesspool(1. an underground reservoir for liquid waste (as household sewage) 2. a filthy, evil, or corrupt place or state: a cesspool of corruption and power. MWCD Alexander Demidov)
waterproof(usu passive If something is waterproofed, it is treated so that water cannot pass through it or damage it. [be V-ed] The whole boat has been totally waterproofed... [V-ed] Waterproofed fabric pants are more expensive than plastic pants. CCB Alexander Demidov)