shaggy dog story

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌshaggy ˈdog ˌstory noun [countable] old-fashioned  a long joke that usually ends in a silly or disappointing way 冗长无趣的笑话

ˌshaggy ˈdog ˌstory nounChineseSyllable  

shaggy dog story
ˌshaggy ˈdog ˌstory noun [countable] old-fashioned
a long joke that usually ends in a silly or disappointing way