fog up
US /fɑːɡ ʌp/
UK /fɑːɡ ʌp/

1.
berwap, berkabut
to cover with a film of condensed water vapor, as from breath or steam, making it difficult to see through
:
•
The bathroom mirror always fogs up after a hot shower.
Cermin bilik air sentiasa berwap selepas mandi air panas.
•
My glasses fogged up when I came inside from the cold.
Cermin mata saya berwap apabila saya masuk dari tempat sejuk.