A term used by Sam-I-Am showing his excitement that he and his new "bestfriend" have matching briefcases. "Briefcase Buddies" is a term coming from the show "Green Eggs and Ham" marking the "friendship" of Sam-I-Am and Guy-Am-I.
Sam-I-Am: Oh wow! Look at this! We're BRIEFCASE BUDDIES!!! It's like finding a matching so flake...
Guy-Am-I: It's an Unremarkable attaché, sold in most major stores.
Sam-I-Am: AND WE BOTH BOUGHT IT!!!
Surf Buddies - A synonym of lovers in the hit CBS show Hawaii Five-0.
Steve McGarrett (Navy SEAL) & Danny Williams (Jersey COP) spend their mornings together on their favorite, little surf spot, after a usual sex session on the large mattress and before they drink as usual their morning coffee, which of course means a relationship, cuz every relationship has started with a cup of coffee.