Confidunce (n.)
/ˈkɒn.fɪ.dʌns/
A person who speaks with intense confidence about a subject they clearly don’t understand.
Synonyms: bullshitter, bluffer, talkspurt, assplainer, bloviate, pontificate
Antonyms: actual expert, humble human
Related Phrase: "Talking out of your ass"
You keep talking like you're an expert, but you sound like a confidunce
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!"
"Yeah well I have checkpoint confidence right now."