From Longman Dictionary of Contemporary Englishbe bursting/bulging at the seamsbe bursting/bulging at the seamsFULLif a room or building is bursting at the seams, it is so full of people that hardly anyone else can fit into it → seam
Examples from the Corpus
be bursting/bulging at the seams• The auditorium was bulging at the seams during the governor's talk.• The island couldn't be bursting at the seams, surely? 