MEANING:
noun:
1. A young chicken.
2. A woman, especially an elderly one, who is talkative, interfering, or annoying.
3. A cleaning woman.
ETYMOLOGY:
For 1: Of unknown origin. Earliest documented use: 1616.
For 2, 3: Short for the name Bridget. Sense 3 is from Irish maid-servants in the US. Earliest documented use: 1785.
USAGE:
"Les Dawson's most lasting legacy is probably Cissie and Ada, the gossiping old biddies whose innuendo-laden sketches graced his television shows for many years."
Andrew White; Cissie & Ada: An Hysterical Rectomy; Northern Echo (Darlington, UK); Oct 4, 2013.