飽きちゃった

got tired of, got bored with

→ 飽きる
飽き get tired of, become bored with + ちゃっ Completive (often regretful or accidental) + Past tense
verb · past indicative Rare #40,977
got tired of, got bored with Colloquial contraction of 飽きてしまった, often expressing that someone has completely lost interest.
JA: 毎日同じ料理を食べて、もう飽きちゃった。
EN: I've gotten tired of eating the same food every day.
Conjugation of 飽きる
Indicative past
飽きちゃった

飽きちゃった

I'm bored of it.

学食飽きちゃった

I'm tired of eating at the campus cafeteria.

飽きちゃった

I'm bored of it.

— ベルリン・天使の詩 (1987)

もう飽きちゃった

I'm already bored of it.