expression
excessive; extreme; over the top
Describes something that goes beyond reasonable limits; often used for behavior, spending, or reactions.
彼の冗談は度を越している。
His jokes go too far.
度を越した支出は避けるべきだ。
You should avoid excessive spending.
Similar meaning, but 度を越した is a fixed expression often used as a pre-noun modifier, while 度が過ぎる is a verb phrase.
From 度 (degree, limit) + を + 越す (to exceed). Literally 'to exceed the limit'.