To do so much of an activity that it becomes harmful, detrimental, unenjoyable, or undesirable. I think I overdid it on the decorations—now the house looks downright gaudy. I know you're keen to get back into the gym, but don't overdo it or you'll end up hurting yourself.
See also: overdo
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
overˈdo it/thingsdo too much: He rather overdid it last Saturday playing football, and now he’s aching all over. ♢ I’ve been overdoing things a bit recently. I really need a rest.
Farlex Partner Idioms Dictionary © Farlex 2017