1. The mixture of cornstarch and water that seems to be half solid and half liquid.
Often times, food coloring (especially green) is added to make it more interesting.
2. Any substance that makes you think "Oh, gross!" and at the same time "Cooool! It's all goooooey!"
3. slime, Gloop, ooze, gooze, cornstarch and water, goopy, gloopy.
a) Let's make some ooey gooey!
b) In first grade, our teacher had us mix cornstarch and water to make ooey gooey... I don't remember what the experiement was all about, but it sure was fun to mess with.
a) Dude! It's, like, all ooey gooey! Come feel it!
b) I think I added too much water in this cake mix, because it's all ooey gooey.
An effeminate man is considered to be ooey gooey based on certain behavior that is usually associated with the female gender.
That new guy in the Marketing Department is ooey gooey!!