What's his/her/their face phrase informal slang spoken
Used to refer to someone whose name the speaker forgets or do not know.
Are you still dating what’s her face?
Did you and what's his face steal my brand-new laptop?
Are you still working for what's their face?
To mess a speech up or forget the words that one is supposed to say
A mock title that is used to refer to a self-important person, especially who is demanding and tyrannical
If you say something slips your memory/mind, you mean that it is forgotten.
To use a specific name for someone
Men are normally responsible for building the house, while women decorate that house to make it become a home.
A: I built this house; meanwhile, my wife was in charge of designing its interior and exterior.
B: It is true that men make houses, women make homes.