Mail (something) in phrase
To literally mean to send something to someone or to a particular place by mail
I mailed in the package. Have you received it yet?
To do something such as a given task, duty, or activity without much or any attention, effort, or interest
When being assigned to the role of the editor during the project, she totally mailed it in.
I feel like I'm not as interested in this job as I used to. All I do is just mailing it in.
The task is so easy that she can mail it in.
To send someone or something to someone or something else using a particular path
To send someone or something to continue forward.
The verb "mail" must be conjugated according to its tense.
The origin of this phrase is not clear.
someone believe that they are allowed to do whatever they want in their own home
It is always advised that wherever you go, a man's home is his castle