dumb loser
Someone who still believes they can win. They display blind optimism without being able to deduce they are out of contention.
Anthony was mathematically out of contention during the basketball tournament, but he continued to be a dumb loser describing how he was going to win it all.
Stupid fucking dumb un-smart loser
A form of insult name from the people around you after you tick them off so hard they stopped thinking of original insult.
“SHUT UP YOU STUPID FUCKING DUMB UN-SMART LOSER”