Former San Diego Charger Quentin Jammer was more like Quentin Hammered during his career ... claiming he played in several games "completely s*** faced drunk."
The 46-year-old made the shocking confession Monday night ... going to X to say, "True story……. In 2011 I played completely s*** faced drunk in at least 8 games."
Jammer -- the No. 5 overall pick out of Texas in 2002 -- went on to say while the 2011 campaign was a bit fuzzy, he definitely remembers being lit for a contest against the Chicago Bears .