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Originally a ZZL poster; now commonly used to refer to anyone who refuses to see the logic of an argument and who posts links to rightwing websites as proof of such illogical thinking.
I could respond to the substance of your argument but I'd rather pull an HiA.
by The great commander March 07, 2004
Happy St. Patties Day!
A really twisted way of saying 'hey you'
See heya. Use only with close cousins and the like. Can also be a twisted way of say 'hey you all' (hey y'all). Whichever...depens on the prononciation.
'Hia hun, what's up?'
by koko April 12, 2005
Happy St. Patties Day!
An adorkable, short, brown girl. One of the most awesome people you will EVER meet. She has a huge appetite and a huge heart.

Pronounced: Hee-ah, not High-ah.
Hia, of course!
by N-stah June 13, 2010
Happy St. Patties Day!
Hands in air, used as a response to the acronym "smh"
Girl commenting on a pic of a toddler throwing the deuces: LOL! you always got her doing some gansta shit. She's probably just showing us how old she is. smh

Toddler's Dad: Hahaha nah she's three, lol she just does that shit when you take pictures of her. hia
by That Dude Derek June 24, 2011
Happy St. Patties Day!
HIA, or HIA Syndrome, is short for "Head-in-Ass" Syndrome. It is used of people whose heads are stuck so far up their own asses they can't see the real world around them. Especially of climate change deniers or mindlessly pro-growth economists who seem to think there are non-physical dimensions the economy can grow into after it eviscerates the Earth. Also of Glenn Beck.
"That guy's got a serious case of HIA."
by teyesahr March 11, 2010
Happy St. Patties Day!
When it's humid out and your butt and inner thighs sweat and rub against each other creating a painful rash due to the chaffing. HIAS is also commonly associated with Butt Puddy and Swamp Ass
by Butt dr. May 03, 2010
Happy St. Patties Day!
hia = heard it already
usually when people, want to show you a song that they think they found or heard first
tim: OMG listen to the song i kissed a girl I bet you havnt heard it
tom: hia
by michael:] May 03, 2009
Happy St. Patties Day!