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1.
The act of using hyperbole (as a verb). Synonymous with exaggerating.
"You act like a retard like all the time."
"Dude you be HYPERBALLIN'! I only act like a retard some of the time."
by Seawesome April 01, 2009
 
2.
To be extremely excited about something on the internet or in computing applications such as gaming, programming, or web surfing.
This website is hyperballin!

I was just hyperballin all weekend.

I owned all weekend, I was a true Hyperballer.
by Slow958 September 24, 2008