An expression used in situations where one could have avoided a poor, destructive, or unpleasant decision by smoking hash oil instead. Kind of like the V8 commercials, except replace V8 with oil.
Guy 1: I got drunk and totaled my car last night. I feel like such an idiot.
Guy 2: Shoulda coulda oiled.

Guy 1: Man, yesterday sucked. I had to meet Jenny's parents and they totally hated me.
Guy 2: Shoulda coulda oiled.

Guy 1: I can't believe Bob overdosed on heroin. He had his whole life ahead of him.
Guy 2: Shoulda coulda oiled.
by Père Temps May 9, 2013
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