A Man Shower also can be used to refer to multiple men sharing a shower. When there are more men than showers and there is a time constraint, this type of Man Shower can be called. No touching or staring is allowed, lest ye be banned from all future Man Showers and shunned/mocked for many years.
"We have to leave in ten minutes and we still have 5 guys who haven't showered yet. With two showers, this is going to take forever!"
"I'm up for a Man Shower."