英和和英

語源 1

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

形容詞

festy (comparative more festy, superlative most festy)

1. (Australia, slang) Disgusting.
   • 1997 September 10, Brian S, “I'm able to admit it when I fuck up”, in aus.politics‎ (Usenet):

     God knows I've had my fair share of festy flatmates who started out all sweetness and light... :)

   • 2000 June 14, Hobbes, “Wheres My Bangles Track!!!?”, in aus.culture.gothic‎ (Usenet):

     I wish I went to Blue Monday, I wanna go back to Wall St, I miss Wall St damnit. The sucken dancefloor, the space under the pin ball machine, the festy toilets, the railings, the venue.

   • 2000 August 28, solitaire, “[MELB] Come live with me...”, in aus.culture.gothic‎ (Usenet):

     So, the festy scrag is packing up and pissing off...

2. (Australia, slang) Very bad, dreadful.

語源 2

From festival +‎ -y (“diminutive suffix”).

名詞

festy (plural festies)

1. (slang) A festival.
   • 2002 July 26, Lee H, “CHAOS ENGINE SPAMBLAST, 26/07/02”, in alt.gothic.music‎ (Usenet):

     Keeping that festy vibe going, we've just been promoted to headline act for the REBIRTH festival this weekend in Cardiff!

参考

• festy cock (probably etymologically unrelated)