source: Three sheets to the wind - Idioms - by the Free Dictionary, Thesaurus and Encyclopedia.
three sheets in the wind and three sheets (to the wind); two sheets to the wind
Inf. intoxicated and unsteady. (Sheets are the ropes used to manage a ship's sails. It is assumed that if these ropes were blowing in the wind, the ship would be out of control.)
He had gotten three sheets to the wind and didn't pay attention to my warning.
By midnight, he was three sheets.
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