- plural noun the testicles. The word was probably used in this sense merely due to the resemblance to knackers. It has not been widely used since the 1960s.
- plural noun a state of nervous agitation, irritation, distress or unhealthiness, as in such phrases as ‘he’s got the nadgers’ or ‘it gives me the nadgers’. The word could also be used to describe a curse or jinx in the same way as mockers. This humorous nonsense term of the 1950s (popularised in broadcast comedies such as Hancock’s Half Hour) is now virtually obsolete.