A wretched individual with such a devastating stammer that words beginning with 'c' or 'k' are pronounced "c..c..coo coo kachoo", thus summoning the pigeons.
Man 1: Dude, I heard that tool say "I have such a small c..c..coo coo kachoo". Then all these birds arrived.
The expression “pigeons in the comfrey” (specifically the lack thereof) refers both, somewhat confusingly, to a person who is not quite here mentally (similar to cobweb head), or who is restlessly busy doing many things (similarly to have fingers in many pies)
* Since the accident, Donald has not been the same. He doesn't have a lot of pigeons left in his comfrey.
* Joe never has a lot of pigeons in the comfrey. I don't know how he keeps up with all those projects.