1 definition by Lil Tree
an up and coming acronym that is used to describe a special moment that you share with someone that makes you laugh at the same time: Intimate Yet Comical Moment (iycm). It is pretty similar to an inside joke.
Alex: "Corinne, that was gantastic."
Tally: "What does gantastic mean?"
Alex: "Don't worry about it; it's an iycm."
Tally: "What does gantastic mean?"
Alex: "Don't worry about it; it's an iycm."
by Lil Tree August 10, 2011