A fly on the wall is someone who plays the role of victim when a bully is abusing them in any way. This can include isolating oneself, hiding, and getting into a fetal position.
When I was in 8th grade at Gateway Acadrmy in downtown Houston, Texas a guy named Ryan Pierce bullied me everyday, so I hid in janitors closets. I felt like a fly on the wall.
by PWS27 August 15, 2017
by TEX2324 December 20, 2022