When Gurd makes a decision or an action which is considered an L among his piers. This is a frequently mistake by Gurd, hence the "common".
"Gurd's phone just disappeared again"
"Omg... common Gurd L"
Joe having an awful opinion usually surrounding football and Manchester United
Joe : rashford is top 5 wingers all time
Everyone with a brain: common joe L
When a certain individual named drag fails to perform a simple task and fails miserably.
Drag fails to get a easy kill in valorant "Common Drag L"