Not give (one) the time of day American British informal
To utterly ignore, disrespect, or be unpleasant toward someone
He's tried to strike up a conversation but I won't give him the time of day.
James' friends wouldn't give him the time of day after they found out that teacher had biased him in competition.
I won't give any guys I hate the time of day due to the bad things they have done to me.
To not care in any way about something or someone
1.To do nothing, ignore the problem or situation needing to be coped with
2.To not want to applaud
1. To stop, delay or diminish something
2. To ignore or end social contact with someone; to separate someone from others
This expression was first recorded in 1864.
To do domething based on your emotions rather than for rational reasons
I can't believe that Tom beat his classmate. He's always the one who let his heart rule his head.