1. finger-wag - Noun
2. finger-wag - Verb
To move the index finger horizontally back and forth, as to say no or reject something.
To move the index finger repeatedly up and down, as to threaten or reprimand someone.
The movement of the index finger horizontally back and forth, as to say no or reject something.
The movement of the index finger repeatedly up and down, as to threaten or reprimand someone.
Source: en.wiktionary.org