Meaning

2 senses
  1. (slang)A curveball (or occasionally a knuckleball) that fools the hitter, causing his or her knees to buckle (i.e. bend).

  2. (slang)Anything so stunning as to have a weakening effect on a person.

Forms

plural: knee-bucklers
Singularknee-buckler
Pluralknee-bucklers

regular

See also

neighbours in the dictionary
knee-buckler — meaning, examples, forms, synonyms | Krumeto