noun, masculine/bɑ̃.dœʁ/plural: bandeurs
Used to designate someone who idolizes and overprizes something or someone without perspective, sometimes until obsession. Akin to the slang dickeating in english.
“C’est une dinguerie à quel point t'es un bandeur de F1.” — It's concerning how obsessed you are with Formula 1.
Related: bdg
From bander + -eur.