When a male doesn't wish to look baby smooth on his undercarriage so he leaves a very short defining stubble. Such as 5 o'clock shadow, but for his Zamboni.
Friend: Hey man don't you have that date tonight?
You: Yeah i do!
Friend: Better shave up in case she wishes to examine your crime scene...don't go overboard though.
You:No worries i already have the 5 o'cock shadow going.