Having sexual intercourse in water- whether a pool, lake, ocean, hot tub, etc.
Cindy and Glenn were water fucking last night in the hot tub.
by Jilina September 22, 2005
a way for a female to masterbate by taking a showerhead, or something that pumps water, and pumping water into themselves.
lisa felt lonely in the shower, so she grabed the shower head and started water fucking herself.
by Zack Healy March 01, 2008