ADJ.
used
BUMPER-TO-BUMPER + NOUN
hour, traffic
PREP.
during
ADV.
always
adj
Very crowded and slow-moving, particularly with regard to motor vehicle traffic.
I'm looking out over that Golden Gate bridge / On another gorgeous sunny Saturday / And I'm seeing that bumper to bumper traffic
Comprehensive; covering all components.
The traffic is bumper-to-bumper during rush hour.
You'll get used to the bumper-to-bumper traffic of this city.
The motorway here is always bumper-to-bumper at this time of day.