flashing

1.

nhấp nháy

shining in a bright but brief, sudden, or intermittent way.

:
a police car with a flashing light
1.

nhấp nháy

brief, sudden, and intermittent bursts of bright light.

:
he was woken up by the police sirens and the flashing of lights
2.

nhấp nháy

the action, especially of a man, of showing one's genitals briefly in public.

:
when arrested and interviewed, he denied flashing