Checkpoint confidence is the feeling of safety you get after earning a checkpoint in a video game, that ups your tendency to do risky things now that you know you won't lose your last bit of hard earned progress if you are immediately killed.
"Why are you suddenly rushing them, Gavin? You'll die!"
Reffering to alcoholic beverages giving u confidence to do somethin u wouldnt do sober, to talk to a random girl or just start conversation with anyone
also giving u the confidence to think u can kick anybodys ass (also known as beer balls)