A Nagasaki 

A Nagasaki is the result of what your toilet looks like after taking a hot, smelly, smeared 30 to 45 minute shit. Your toilet has shit smeared all around like Nutella on bread, and in the middle will be one huge (probably radioactive) turd.

Bro who took a Nagasaki in my toilet?

A Nagasaki by Hallo777 November 12, 2018

dropping a nagasaki 

frankly this means taking a dump...but in reference to the bomb that the US dropped on the Japanese island of Nagasaki during World War II

Ed: (on the phone): Hey Joe whachu up to?

Joe: Hey Ed, im dropping a nagasaki right now can I call you back?

dropping a nagasaki by no1evofn March 8, 2009

Nagasaki A-Bomb 

Wilst deficating, if your stall-mate is being quite vicious, (loud), you would pull a piece of the fecal matter out of the toilet and chuck it over the wall wilst flickering on and off the lights shouting "AIR RAID!" and running for shelter down the "Women's Hygene" aisle, where they'll never look for you.

I gave that sucker a Nagasaki A-Bomb! He wouldn't put a cork in it!

Nagasaki A-Bomb by Spanked April 3, 2006