It was my typo.
Yes, I realized that, I was being naughty ... no disrespect intended. I just liked the sound of 'shriked'. I now look on it as a portmanteau of shrieked and shrivelled: The effect on a cock of shrieks of derision from a 'service provider' ...
I have never had shrieks, but I have had what I interpreted as pitying snorts ... perhaps it was just disbelief.