stay in
US /steɪ ɪn/
UK /steɪ ɪn/

1.
to remain at home or in a particular place, rather than going out
:
•
I think I'll stay in tonight and watch a movie.
•
It's raining heavily, so let's just stay in.
2.
to continue to be popular or fashionable
:
•
Despite new trends, classic styles always stay in.
•
That song has really stayed in the charts for months.