A party, most generally one that is, well, chock full of hoot, with just a little bit of nanny.
Oz: We should figure out what kinda deal this is. I mean, is it a-a gathering, a shindig or a hootenanny?

Cordelia: What's the difference?

Oz: Well, a gathering is brie, mellow song stylings; shindig: dip, less mellow song stylings, perhaps a large amount of malt beverage; and hootenanny, well, it's chock full of hoot, just a little bit of nanny.

Xander: Well, I hate brie.
by Captain Milo March 24, 2007
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(n.) celebratory event held in the southern United States and possibly featuring some of the following: home-brewed hooch, straw hat, people 'dipping' socially, banjo, air boat, shotgun, confederate flag. interestingly enough, it tends to be wild, uninhibited and dionysian despite the socially conservative views of most of its participants
how 'bout 'dat hootenanny?
by Chris Cliche July 12, 2004
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A big chaotic party or get together. pretty much anything thats fun or funny. can also be used as an expression of surprise or damnation.
"That was quite a hootenanny when Mrs. Belcher started to polka in math."

OR

"HOLY HOOTENANNIES!"
by Beetle November 9, 2004
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Person 1: What did you do on friday night?
Person 2: We had an awesome hootenanny in town.
by Alex and Rob March 4, 2003
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A great annually held music festival held in NorCal, featuring bands such as Social Distortion, Brian Seltzer, The Reverend Horton Heat and a host of psycho- and rockabilly bands.
You got to go to Hootenanny this year? Lucky bitch.
by Subcultural Girl September 6, 2003
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n. A LAN party also meeting the parameters necessary for a hootenanny, especially when occurring south of the Mason-Dixon line. WARNING: In order for a LAN party to be an official "LAN hootenanny", ALL ethernet cables MUST be home-made, and include at least four (4) VISIBLE home-made connections. Solder on those connections is highly optional! Excessive use of duct-tape on, around, inside of, or across any computers at a LAN hootenanny should always be expected. Excessive use of the word aight is recommended for the full effect.
OneShot: Hey, Btone, what we gonna do this here comin' weekend?

Btone: Well heck, I don' know. What you say we have us a LAN hootenanny!?

OneShot: Aight. Les' go. Yer on.

Btone: Aight. You jest hold on; I'll be there in my ol' Chiv-ro-lett in jest a spell. Les' Git-R-Done.

OneShot: Aight.
by Btone June 9, 2005
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