look daggers at मीनिंग इन हिंदी

As he drives off, mother and daughter look daggers at one another and each slams a door as they enter their mansion.
Did he or didn't he look daggers at some writers during the game because he won a point while losing the game?
You might look daggers at him for an hour and he would not notice it, and it would not trouble him if he did . " Jerome K . Jerome " Three Men in a Boat"