An intimate shower taken between 2 persons solely for the purpose of saving time, completely devoid of any sexual connotation.
Oh shit, my alarm didnt go off"
"Shit... I have to be at work in 20 minutes"
"We'll just have to shower together"
"Hey man, thats gross"
"Nah its cool... It'll be a Business Shower"
This one will never happen to me... unless my business associate is very, very hot!