If someone or something is sexy, they are very attractive and make people feel interested in them.
The word sexy can make people think of love, attraction, and feeling good about themselves.
Examples:
She looks very sexy in that dress.
The movie star is very sexy.
The cat thinks it's sexy when it cleans itself.
The flower is so sexy that all the bees want to be near it.
He thinks he's so sexy that he looks in the mirror all day.
The music is so sexy that everyone wants to dance.