What does the idiom “tipped off his rocker” mean?

if you say that someone is off their rocker it means that person is behaving in a strange matter or a very silly way

It could mean a person has gone astray from sanity.

gurl whut are you saying lol

answer: having more negative in their interactions with their child more or likely because of issues with stress and depression.

explanation:

teenage parents may also have less time as they juggle their responsibilities to spend with their child which can make the child feel lonesome and not enough trust was made to create a foundation between the parent and the child.