Similar in meaning to
chinny reckon. Used to express disbelief, always with an exaggerated motion of one hand
on the chin, as though shaving/
stroking an imaginary beard. It means that whatever the first speaker has said is so fanciful or impossible that another impossible thing must be true.
Person A: My
grandfather was
King Henry VIII.
Person B: Really? And I'm
shaving my green beard.
