An extremely common phrase whereabouts dancers, needing to look happy and enlightened, always smile while dancing for an audience.
Some disagree with the popularity of this phrase, these people are known technically as 'slappers'. Most people feel a deep level of sympathy for these hideously ugly 'slappers', for they emit such a level of stupidity that even a slug is more intelligent and infinitely more beautiful.
Timmy "What do dancers always do?"
Dancing teacher "Dancers always smile Timmy, come on you know that. Everyone does!"
Slapper "Dancers always smile isnt a common phrase!"
Everyone else in the world "Yes it is you disgusting filth-bag"