the mother of all (something)

informal

an extreme example of something.

Mike's suffering from the mother of all hangovers after the party last night.

• burst bubble
• burst in
• bursting at the seams
• burst in on
• burst in on someone
• burst in on something
• burst into
• burst into something
• burst into tears
• burst onto the scene
• burst out
• burst out doing something
• burst out of
• burst out of somewhere
• burst someone's bubble
• burst the bubble
• bury head in the sand
• bury the hatchet
• bury your head in the sand
• bush league
• bush telegraph
• business as usual
• business end
• business end of
• business end of something