dense, dents

Dense or dense means thick, crowded, or difficult to get through , literally or figuratively--
There is a dense crowd in the plaza.
It seems dark in the dense forest.
He can be very dense sometimes.

Dents or dents ( rhymes with dense ) is the plural ( more than one ) form of "dent", meaning a depression caused by the impact of something--
There are two dents in the car. Do you know how they got there?
Dents may also mean to cause a depression by impact--
I told him if he dents the car again, he'll have to pay for it himself.

Now that you know that, you can say--
"We have two dents in our cooler from trying to make our way through the dense crowd."