To reference one's own created word and then proving it's existence through an objective authority such as Urban Dictionary, Wiki_____, etc.
As in a game of scrabble or other words-for-points game, a player may reference a self created word expecting a score change in their favor.

"Triple word score for Becky, she Jonesy'd with her own made up word (crusticle) and won!"
by Mezomitch January 22, 2010
Get the Jonesy'd mug.