It is from a 70s children's tv series called Catweasel. The eponymous character is a wizard who is surprised by 'modern' technology like the electric light bulb "sun in a bottle" and the telephone "telling bone"
Answer the tellingbone will you please? My hands are in the washing up water.
by DeepSpin March 29, 2016
Get the Tellingbone mug.
TELEPHONE.

Self explanatory.

I believe this is a mainly Aussie expression in rhyming slang, but may be used within the sound of the bell (cockney-ism).
by Dave Sheedy September 2, 2006
Get the Tellingbone mug.