What is Flopping?
1.
1. The act of moving one's partially erect penis up and down and possibly side to side without the use of hands or the power of a pelvic thrust
2. Using the muscles at the base of the penis to control the movements of the penis when partially engorged with blood.
See Also:
1. Wow, I got really bored in math class so I was Flopping under the desk.
2. When I want to confuse a girl and I am in my sweat pants I Flopping until she notices.
2.
having sex
"man we flopped alot that night!"
