| You know that song that comes along once in a blue moon and takes your breath, and steals your heart, away? |
| He hardly ever went outside except to get the newspaper and, once in a blue moon, mow the lawn, and so his skin was milk-white and blue-veined. |
| While most children have bedwetting accidents every once in a blue moon, others have embarrassing incidents more often. |
| It only happens to me once in a blue moon that I can make no forward progress. |
| You could forgive him for a snit here, a tantrum there, an errant expletive in front of an impressionable young fan once in a blue moon. |
| The second full Moon in a calendar month is sometimes called a blue moon. |
