look up any word, like pussy:
 
2.
To adorn what otherwise may've been met with scorn.
I regularly festoon my computer screen with festive comical cartoons.
by Hercolena Oliver May 15, 2008
 
1.
A word used to describe someone thats really lame.
Person 1: "Bobby is such a festoon"
Person 2: "Tell me about it bro, he's such a butt"
by Master_of_the_festoons June 17, 2013
 
3.
The act of coitus followed by a move similar to the The Joe Mauer.
I can't wait to festoon Jessica after the prom, it'll be a memory she'll never forget!
by Elisa Chance April 11, 2012