What does "blue-barrel" guy mean?

"blue-barrel" guy meaning in Urban Dictionary

blu bar-uhl gahy:A "blue-barrel" man will be the person you would trust maintain a tremendously dark, unsightly secret.This is a reference to former police officer in Bolingbrook, Illinois suspected to be responsible for deaths of at least 2 of their spouses. The blue barrel means an alleged blue synthetic industial barrel held in the bed room for several months following dissapearance of their latest partner. This person reportedly entrusted his step-brother to help in getting rid of said barrel. The barrel is thought to retain the keeps of their previous spouse & likely rests deeply when you look at the silt of a shipping canal in your community.