enough to sink a ship
Also, enough to sink a battleship. A more than sufficient amount, as in They brought enough food to sink a ship. [Colloquial; mid-1900s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.