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2.
A shower taken the day after a brutal night of debauchery and drunken hook-ups. It may involve crying, and thorough regret but is always satisfying and cleanses the body and mind of un-brushed teeth and octopus hands.

It is usually scalding hot as a self punishment.
After a night of drinking and making out with dirty Steve I had to have a shower of shame...it was the only way.
by georgia rule June 28, 2009
 
1.
The shower one must take after a horrific experience.
Examples:

Failed, yet valiant, attempt at trying to make it home before shitting yourself; Horrible break-up; Rick-Rolled; Watching 2Girls1Cup; Etcetera, etcetera

Usage:

John: " I didn't make it home last night...it was horrible man, I had shit everywhere."

Steve: "Looks like someone had to take the Shower of Shame!"
by booty bandits August 16, 2012