look up any word, like sparkle pony:
 
1.
The constant use of a voice that elongates or defines parts of almost every word that is said

Commonly used by self centered females, however it may be part of ones accent.

It is extremely annoying for any normal listeners.
see

'the only way is essex' (itv)
or 'beauty and the beast' (channel 4)
both TV shows in the uk, that have recurring slag voice.
by Behemia April 14, 2011