Leicester slang for 'stop'.
Often used as a verb ('Pack doin' vat!') or an
interjection ('pack it in!')
In the case of 'pack it in', the last syllable is often elongated when spoken by children or the
mentally deficient, resulting in a long, whining phrase that causes the target of the command to 'pack'
whatever it is that's annoying the speaker, out of sheer annoyance.