need (something) like a hole in the head, to

need something like a hole in the head

not to need something at all. I need a house cat like I need a hole in the head! She needs another car like she needs a hole in the head.
See also: head, hole, like, need
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

need like a hole in the head

Have neither a need nor a desire for something, as in I needed that extra work like I need a hole in the head. This expression has such ancestors as "As much need of it as he has of the pip [a disease] or of a cough," from John Ray's English Proverbs (1678), and "As much need of it as a toad of a side pocket," from Francis Grose's Dictionary of the Vulgar Tongue (1785). [Slang; c. 1940]
See also: head, hole, like, need
The American Heritage® Dictionary of Idioms by Christine Ammer.

need (something) like a hole in the head, to

A superfluous item, something one does not want at all. A slangy Americanism of the 1940s, it is the modern equivalent of “as much need on’t, as he hath of the pip [a disease], or of a cough” (John Ray, English Proverbs, 1678) and “as much need of it as a toad of a side pocket” (Francis Grose, A Classical Dictionary of the Vulgar Tongue, 1785). The 1944 collection of articles from the U.S. Army publication Yank had “The Partisans need chow-chow like they need a hole in the head” (Best from Yank).
See also: hole, like, need
The Dictionary of Clichés by Christine Ammer
See also:
  • love-tooth in the head
  • (one's) head is more than just a hat rack
  • hatrack
  • head
  • head into
  • head into (something)
  • a head
  • mop head
  • have rocks in one’s head
  • heads up