If a friend on discord tells you he already knows xy.
Philipp: I already knew that, its old.
OLD or On Line Dating is a new phenomenon which emerged in the past 20 years with the development of the internet
used to express affection, familiarity, or contempt.
"it gets the old adrenaline going"
boring or tiresome, especially as a result of repetition or overfamiliarity.
"I wish she'd shut up—it's getting old"
brazilian slang (most used on twitter) that stands for something that's very obvious and/or already known by everyone. you can see it also as "old mo" or "old que sim/não".
"old que sim" for agreement sentences and "old que não" for disagreement. "mo" = the same as "hun".
person 1: "he's a shit of a president"
person 2: "and that's old"
person 3: "elis regina is a bad singer"
person 4: "old que não"