Hangower
A shower that one takes when hungover. It usually lasts for at least an hour and may include any of the following: drinking the shower water due to dehydration, masturbation, laying on the floor of the shower, and maybe even puking.
Girl (over text): hey
You (4 hours later): hey sorry i was taking a hangower whats up
You (4 hours later): hey sorry i was taking a hangower whats up