Whie originating with Marvel Comics loveable monster The Incredible Hulk, the term can also be universally applied to almost any character who undergoes a transformation that drastically upgrades his size, power and level of mass. Often, but not always, accompanied by damage to their clothing or an increased level of musculature. But a straight increase in overall body growth without any added muscle, or a sudden increase in various physical attributes such a womans breast size can also be considered "Hulking out".
When exposed to a full moon, a Saiyan who still retains his/her tail will often HULK OUT into a giant, out of control primate.
by Doc Evil March 24, 2005
when one's cock becomes to engorged, it feels like it's about to bust out of the foreskin.
Man, Sherry's so hot, I'm about to hulk out up in this place.
by Shadow228 September 07, 2007
to become extremely large from lifting weights
"holy fuck dude" you have fuckin hulked out since the last time i saw you, are you taking muther fuckin steroids or something bitch?
by joe clabough March 24, 2005
See Columbine shooting
Wow, those crazy ass kids really had a hulk out. Going from relatively unknown high school kids to school shooting defintions.
by P. Kaltenbach December 23, 2007

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