| Definition -
An interrogative fragment that is appended to statements to turn them into questions.
1. The types of questions that result from this are called tag questions.
Example - He likes me, doesn't he?
In the above, the doesn't he is the tag that turns the statement He likes me into a tag question.
Oxford English Dictionary - The term's first citation is from 1957:
"An understanding of tags implies an understanding of sentence order and the role of accent."
(Publ. Amer. Dial. Soc. xxviii. 17)