1 definition by blahblahbalhihu8trhute

PSD or petko stress disorder, is a disease that only happens to kids from WCYO. It occurs when Petko, the orchestra conductor forces you to play by yourself many times, and really only focuses in you during sectionals. Its horrible
Im gonna go practice now, im having some major PSD

After that sectional, i was having crazy PSD

Rehearsal tonight aka PSD
by blahblahbalhihu8trhute November 23, 2010
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