Top definition
a secret party lead by horses.
usually containing vodka spiked hay and other tight ish like that.

horse parties only allow horses so unless you have some sort of magical transforming into a horse power, you will probably only hear legends of such parties.
they are way more fun than any party hosted by college kids.

like most other parties when the horse owner is coming to check on the horses they neigh "5-0! 5-0!"
"neeeeigh! someone spiked the hay! the horse party is about to craaack bro!"
by yeahdude15151515 May 12, 2009
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug