Definitions by Frosty the snowgirl

Gillybones 

A person who is scared and has phobias of everything. In general a fretful and fearful person. Normally, this person blends in and can be known as an introvert.

"Gosh, Mike was acting like such a gillybones in class today."

Gillybones by Frosty the snowgirl November 30, 2019