stone cold sober

His way for most of this season was stone cold sober.

Had I not been stone cold sober and it were seven years ago, I could see myself getting my rage on.

Or at least that was bad news for me, stone cold sober and with enough functioning brain cells to recall the past glory of musicals.

The paper quoted Grubb as saying: “I was stone cold sober, drink had nothing to do with me thinking it was real.”

Perhaps to no surprise, the Mormon-associated institution of Brigham Young University in Utah fills out the flip side as the most "stone cold sober" campus of the bunch.