Dense

1)Dense means that something/someone is heavy/thick. For example, oil is less dense than water, so it floats on the top.

2) Dense can also be used as an insult. For example, you can use this word to describe a person who is thick headed or stupid.

Teacher: Oil is lighter than water so it floats on the top! Can someone give me an example of something dense?
Derrick: I sure can. Look at Sally. She's so fat she could sink in the ocean.
Teacher: Excuse me? You don't say such things about your classmates. I asked for something dense. Not someone dense.
Derrick: Heres another example: You must be pretty dense in the head, Miss Brown, to not see that she is fat.
Sally: I'm on a diet! And me and Michelle SAW you eating three other kids lunches today. I hope you meant it in the best way because Miss Brown is thick AND compacted with knowledge.