PBC

stands for Period Butt Check

code word for girls to check with each other if they have a leak

girl 1: hey pbc?
girl 2: (follows behind girl 1) nah, you're good

girl 1: omg pbc asap!
girl 2: we have a problem! get to the bathroom immedietly!

by gijrgjgewgiwiwhnefnjwfiw February 16, 2011