Japanese Mispronunciations/Saké
Joe intentionally pronounces various Japanese words wrong to annoy the weebs in his audience. One of these words is "sake" (さけ), which is a Japanese alcoholic drink that's actually pronounced "sak-ay", or "saké". So not only does Joe like to pronounce "saké" as "sake" instead, he also likes to pronounce the actual English word "sake" as "saké". He also likes to pronounce other words which rhyme with sake in a similar way, like "mistaké".

This is a Joeism

When Joe says this, it's not a reference to any stream. It's just something he says sometimes.
"That's the dumbest joke. I think saké is even dumber than Leon. It's even dumber than useless." ~ Joseph Anderson