standing joke
Something that continues to be considered funny, cause amusement, or result in ridicule over a long or continuous period of time. His bizarre choice of clothes became a standing joke among the students in our class. I'm so hopelessly forgetful that it's now a standing joke in our house.
standing joke
a subject that regularly and over a period of time causes amusement whenever it is mentioned. Uncle Jim's driving was a standing joke. He used to drive incredibly slowly. Their mother's inability to make a decision was a standing joke in the smith family all their lives.
standing joke
Something that is always funny even though it is often repeated. For example, Mary's "Dennis who?" when her husband is mentioned is a standing joke around here. This idiom employs standing in the sense of "established" or "regular," a usage dating from the mid-1500s.