Endurence drinking or Duration drinking is a slowed down version of getting really hammered, it is an all day process. It is the marathon version of partying. Instead of slamming a couple of beer pitchers while watching a sports game you drink the entire day and the entire night. It's often practiced by alcoholics or by college kids on summer vacation.
Bro1 .bro we've each smashed an 18 pack and a 12 pack.
bro2 .Bro we got started at 10 am what did you expect ?
Bro1. Man we were endurance drinking all day