the whale tail is the shape formed when a g-string rides up high over a womans trousers

Contraction of 'isn't it' which has been used in London for about 40 years ATLEAST. (so stop attibuting it to all sorts of wierd groups of people like for example chavs) Used at the end of sentances in the same was as eh?, right? or you-get-me?

1. (British slang, esp. Asian, i.e. Indian, Pakistani, etc.)

Contraction of "isn't it", "isn't he/she", "aren't they", "isn't there" and many other end-of-sentence questions. For greatest effect use in places where it would make no sense whatsoever if expanded.

2. General positive exclamation meaning "yes, I agree!"

isn't it?

A derivative of "is it not", or more directly "isn't it". Often used at the end of a statement or word to give it emphasis, and simultaneously invite agreement.

English word meaning: "Isn't it?" or "Is it not?"