1. a funny name to call your teacher.
2. edible nuts that are colored in a variety of colors (the colors of the rainbow).
3. balls that are colored in rainbow colors.
4. a knee slapping inside joke between Bianca and Rachel.
1. Ms. ______ is a rainbownut.
2. These rainbownuts are YUMMY!
3. Did you see that man's rainbownuts?
4. YOU'RE A RAINBOWNUT!