Typically a 12 year-old boy, whose balls have no quite dropped yet. Playing COD or Halo, screaming at the top of his squeaky annoying voice whenever he feels he has accomplished something of importance. Not to be confused with the Pownasaurus-Rex . A middle-aged balding version of the pre-teen Pownasaurus. Who, despite the dropping of balls, still sucks at life.
"AHHH DOOOD! I am totally like the POWNASAURUS right now! I definately just jumped into that vehicle, damn right, POWNASAURUS on the prowl!!!"
"Man...STFU you squeaky voiced beeeyyotch!"
1: v. a celebration, often sporadic in nature, in which an individual has overcome an obstacle that causes a great sense of pride. woot, Woo-ha!, yeah(see definition 2), any variation of fuck (especially fuck yeah), and similar meaning phrases may be included, as well as wailing upon various objects and/or people without definite purpose.
2: n. an unseen ejaculation due to an overwhelming excitement.
1: male gamer: "OH, FUCK YES, WOO, WOO, WOO!" (male gamer assaults monitor, keyboard, and mouse with flailing hands) (pwngasm as an action)
2: male gamer leaps out of seat as it performs odd, aggressive motions with its body, as if ejaculating (pwngasm as an idea)