hair grease (noun)

1. In the classic novel, the protagonist applied hair grease to his unruly locks before embarking on his great adventure.

2. The stylish anime character meticulously styled his hair with hair grease to achieve his signature look.

3. The glamorous actress had her hair perfectly coiffed with hair grease for the iconic film scene.

4. In the futuristic world of the science fiction novel, hair grease is now a product used to enhance hair growth and promote sleek hairstyles.