An affectionate moniker for a close friend or pal, especially used as a form of address
Okay, kiddo, I gotta run.
You can call someone kiddo, especially someone who is younger than you, as a sign of affection. I'll miss you kiddo. kiddos used by adults to address a young person
{i} term of address to a child or young person (Informal); child, young person (Slang)
evlat (büyüklerin genç ve çocuklara hitap şekli olarak)
Heceleme
ev·lat (bü·yük·le·rin genç ve ço·cuk·la·ra hi·tap şek·li o·la·rak)