(in a public place)  jeremy: hey man, did you get laid by that bitch you took home last night?  kevin: code blue
when a guy gets blue balls and later has to talk about it to his friends, but doesn't want everyone to hear
"(in a public place)  jeremy: hey man, did you get laid by that bitch you took home last night?  kevin: code blue" What is the definition of "code blue"?