A ‘full sing’ refers to the jingle that has sung vocals from start to finish. This is really the main version of the jingle and is effectively an ‘entire song’. It is also the basis from which all other cuts are derived from. For example, once you have a full sing jingle, a top and tail is produced by removing the vocals from the middle section, thus leaving vocals at the beginning (top) and end (tail), with a music bed in the middle.
The full sing jingle is the version that we usually prepare for you when creating your jingle demo. It is the jingle in its most natural form, with music and lyrics from start to finish.
For more definitions, read the post jingle lingo, what does it all mean.