He is describing fights with his girlfriend, the perennial theme of male vs. female (hence, gender bombs), and he's basically saying that it's hopeless because you're bound to lose this fight, guys ("The girl will school you"), and logic will break your heart because either the girl is right and you have no real defense against it, or else you're right but it's not worth hurting the girl over. So in the end the girl is ALWAYS right, even when she's wrong. That's what this song is about.
He is describing fights with his girlfriend, the perennial theme of male vs. female (hence, gender bombs), and he's basically saying that it's hopeless because you're bound to lose this fight, guys ("The girl will school you"), and logic will break your heart because either the girl is right and you have no real defense against it, or else you're right but it's not worth hurting the girl over. So in the end the girl is ALWAYS right, even when she's wrong. That's what this song is about.