What is 5 O'clock Shadow?
1.
Short beard stubble on a man's face that has grown since the morning shave, usually experienced towards the end of the day.
Can be used to describe a man who looks scruffy, overworked/tired, hung-over or rugged.
"Rough night last night? Got that 5 o'clock shadow."
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2.
the facial hair that comes late in the day when a man has shaved earlier
Naturally he had a 5 o'clock shadow again.
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3.
An abundance of pubic hairs that have collected on the rim or bowl of a toilet or urinal.
Yo! Someone needs to shave the pisser man, its got a nasty 5 o'clock shadow.
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