When you are doing a chick from behind wearing a condom. Pull out a hose or a supersoaker and fill up the condom to the size of a large balloon (make sure you hold the condom so the water can't escape). When she starts to feel uncomfortable with the pressure yell I am Incredible Hulk! After you are bored with this, pull out leaving the condom in and watch the whole thing gush water.
There is an example of Incredible Hulk that Hoe in the definition.