Coughing, clearing your throat, or making some noise while in a public bathroom stall to let people entering the bathroom know not to even try the stall door. Especially used when door lock is missing or doesn't work.
man #1 enters bathroom and heads towards stall
can cough comes from behind stall door
man #2 uses different stall
can cough comes from behind stall door
man #2 uses different stall
by kfw July 18, 2006
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