An adult Chinook Salmon caught in fresh water. Often combined with the type of Chinook IE Blackmouth Nooker, Not to be confused with a free hooker which is also a Nooker. Together these may create awkward conversations. See Example
Son: Hey Mom, Joe and I went down to the river and busted out 3 Nookers and one was a blackmouth.
Mom: You did what?
Nookery is a portmanteau of 'Nook' and 'crookery' popularised by the famously fraudulent character Tom Nook from the Animal Crossing game series. He forces you to continue upgrading your home drastically increasing the price each time. Then you have to work for him and do jobs - UNPAID! Thus, Nook the Crook created his own business strategy of Nookery... Watch out for the racoons.