ガキ

がき
noun
brat; kid
1. brat; kid; urchin
A rough, somewhat derogatory term for a child, often implying they are annoying, mischievous, or immature.
うるさいガキだ。
What a noisy brat.
ガキの(ころ)(はなし)だ。
That's a story from when I was a kid.
まだガキだから()からないんだ。
You're still a kid so you don't understand.

ガキ comes from 餓鬼(がき), originally a Buddhist term for hungry ghosts, which came to refer to children (perhaps from their constant hunger). Usually written in katakana in modern usage.

REGISTER:
This is rude/informal language. Use 子供(こども) or お()さん in polite contexts.

NUANCE:

  • Often used disparagingly to criticize a child's behavior
  • Can be used affectionately in some contexts, especially for one's own past
  • ガキの(ころ) (when I was a kid) is a common nostalgic expression

RELATED EXPRESSIONS:

  • (くそ)ガキ: little brat (even more rude)
  • ガキんちょ: kid (slightly softer)