verb
nags; nagged; nagging
to annoy (someone) by often complaining about his or her behavior, appearance, etc. [+ obj]
+ about
to annoy (someone) with repeated questions, requests, or orders [+ obj]
to cause (someone) to feel annoyed or worried for a long period of time [+ obj]
noun
plural nags
[count] informal :a person who nags or complains too often
noun
plural nags
[count] :a horse that is old and usually in bad condition - compare 2nag