Does anyone know what’s the Korean word he uses when calls him boy?

The Korean word for boy is 소년 (sonyeon) for a young boy or 남자아이 (namja-ai) for a male child

i think he's actually just calling him puppy (강아지) instead of "boy" but I only checked the 2 latest chapter where he calls him "boy"

Yeah but which one is he actually using in the raw is what I meant?