From Longman Dictionary of Contemporary Englishcock-a-hoopcock-a-hoop /ˌkɒk ə ˈhuːp $ ˌkɑːk-/ adjective [not before noun] British English SATISFIEDEXCITEDpleased and excited about something, especially something you have donecock-a-hoop at/about/over Robert’s cock-a-hoop about his new job.Origin cock-a-hoop (1600-1700) set the cock on the hoop “to celebrate” ((16-17 centuries))
