mad enough to chew nails

mad enough to chew nails

Seethingly angry; furious to the point of becoming irrational. I tell you, I was mad enough to chew nails when they told me they'd given the grant to that hack, Dr. Warner. The boss was mad enough to chew nails after he heard we'd lost the Jefferson account.
See also: chew, enough, mad, nail

mad enough to chew nails (and spit rivets)

 and angry enough to chew nails; mad enough to spit nails
Inf. Fig. very angry, as if to be able to bite through metal nails. I am mad enough to chew nails! Who took my checkbook? Her sudden tirade made him angry enough to chew nails. He stomped in, mad enough to chew nails and spit rivets.
See also: chew, enough, mad, nail