expression, suru verb (irregular)
stay within bounds; not go too far; not get carried away
Used to tell someone to exercise moderation, stop before going too far, or not overdo something. Often used in admonishments or warnings.
冗談も大概にしろ。
Don't take your jokes too far.
遊ぶのも大概にして、勉強しなさい。
Stop playing around so much and study.