Definition of "mantrap"

mantrap

noun
plural mantraps
1. A mechanical device for catching trespassers.
  Quotations
  The space had been cleared of landmines and mantraps.
  2022, Ian McEwan, Lessons, page 319
2. A small space with two sets of interlocking doors, such that the first set of doors must close before the second set opens, used to restrict access.
3. (slang) A woman who is dangerously seductive to men.
  Quotations
  "Don't know the manners of good society, eh? Wal, I guess I know enough to turn you inside out, old gal — you sockdologizing old man-trap."
  1858, Tom Taylor, Our American Cousin
  If anything, she was worse since she had enough money to implement her desires. They were merely in the trade for business reasons. No—Eloise would be something to steer clear of. Alexander was right. She was a mantrap.
  2011, J. F. Bone, The Lani People