When you get bored or tired during sex. Then you urinate inside your partner. While wherein a condom, so it fills like a Water Balloon. In order to fool your partner into thinking you ejaculated.
Last night during sex I was really tired, so I gave my girl the Water Balloon. Then I finished watching the Tonight show.
by Jamie 69 June 26, 2010
Jake: Hey David what are you doing tonight?
David: Nothing probably just going to sit in the shower and do some water ballooning
David: Nothing probably just going to sit in the shower and do some water ballooning
by numbertwentyone January 13, 2012
The sexual act of a male inserting his penis into the anal cavity of another individual and when penis has fully penetrated the recieving anal cavity, the male begins to urinate and continues until relieved.
After an entertaining movie and pleasant dinner, Jim asks Kendra if she is interested in coming back to his apartment. Kendra hesitates at first but then Jim quietly whispers, "I'll give you the meanest, hottest, and longest Water Balloon you've ever had." Kendra quickly agreed.
by Ken Mayhew October 21, 2006
You're fucking a girl with a condom, when you blow your wad in it take it off and smack her with it. Thus pissing her off but giving yourself a very good laugh.
by Josh Quail November 21, 2007
by Missyknowsall September 15, 2009
(correct definition) When a girl fills her mouth completely with water and proceeds to suck your dick. You then blow your load in her mouth and give her cheeks a big ole smack and pop that mofuckin water balloon. Hilarity ensues.
I water ballooned my girlfriend because she lost a bet and now she isn't speaking to me but I don't give a shit because I water ballooned her.
by fittNasty April 13, 2009