Two Older Couples Are Having Dinner

and afterwards when the wives get up to get dessert, one husband says to the other, "you should go to the restaurant we went to last night, it was great!" "Sure" says the other, "what's the name?" The first replies, "Um, what do you call the flower with red petals and thorns on it?" "a rose" said the second". "Right" the first says, "Hey Rose, what's the name of that restaurant we went to last night?"