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2.
When you really don't have enough time to shower but your odor is driving you crazy so you take an extra super speedy shower, doing everything extra fast.
The ballgame was tied in the middle of the ninth, but I had to take a ninja shower just in case it went into overtime.
by barefootgirl August 21, 2011
 
1.
When you have a quiet shower by not turning the water pressure up to high so as to not wake up other residents within your residence who may be awoken by the sound of water flowing through pipes.
It was after midnight and everyone was asleep so in order to bathe thyself I enacted the ancient form and techniques of the ninja shower.
by majesticbeard October 26, 2014