Banalité translates to "banality" or "ordinariness." It's an interesting word because it directly relates to the song's central theme of being a "normal guy" (mec normal).
Amir sings, "La banalité j'excelle enfin dans un domaine" (Banality, I finally excel in a domain). This line is both self-deprecating and humorous, highlighting his struggle to be unique while ironically finding pride in his very ordinariness. It's a key word for understanding the song's playful and introspective tone.
Have you ever felt like you're just... normal? Like you're not exceptionally anything? That's exactly what Amir is singing about in "Mec Normal"! He jokes that if you Google 'normal guy,' his picture would be the first one you see. He's not super handsome or ugly, not short or tall, and definitely not a genius. He feels like he's stuck in the middle, saying, "J'ai pas les moyens de m'échapper de la moyenne" [I don't have the means to escape the average].
But here's the cool part: even though he feels so average, he finds something truly special. He talks about having tons of ideas and wanting to change the world, but always hearing, "Ça c'est déjà fait" [That's already been done]. It's like everything he wants to do, someone else has already done it. But then, he finds love, and that changes everything. He sings, "T'aimer pour de vrai / T'aimer comme je t'aime / On l'a jamais fait" [To love you for real / To love you like I love you / We've never done that]. It's a sweet realization that even if he's a "normal guy," his love is unique and makes him feel like someone important. It's a really relatable and heartwarming song about finding your own kind of extraordinary!