noun
selfishness; egotism; self-centeredness
Slang abbreviation of 自己中心的. Used to describe someone who is selfish or only thinks about themselves, often in a critical or teasing way.
See also: 自己中心
That guy is so self-centered, he never listens to what others say.
自己中な行動はやめてほしい。
I wish you'd stop being so selfish.
The full, more formal adjective meaning 'self-centered' or 'egocentric'. 自己中 is the slangy, abbreviated noun form used in casual conversation.
Means 'selfish' or 'willful', often implying a childish demand for one's own way. 自己中 focuses more on a general self-centered attitude rather than specific demands.
Abbreviation of 自己中心的 (self-centered). The 中 replaces 中心的, and the reading ちゅう is a colloquial shortening of ちゅうしんてき.