Frank J. Wilstach, comp. A Dictionary of Similes. 1916.
Big
Big as a church debt.
—George Ade
Big as an elephant.
—Anonymous
Big as a house.
—Anonymous
Big as a whale.
—Anonymous
Big as life and twice as natural.
—Anonymous
Big as all out of doors.
—J. R. Bartlett’s Dictionary of Americanisms
No bigger than an unobserved star.
—John Keats
As big a liar as Tom Pepper who got licked out of hell for telling lies.
—Vincent Stuckey Lean (Collectanea)
As big as a parson’s barn,—always ready for more.
—Vincent Stuckey Lean (Collectanea)
Looking as big as bull-beef.
—English Proverb
Another stain, as big as hell can hold,
Were there no more but it.
—William Shakespeare