attractivecousin is of course right, the singer's partner is making fun of him, and of course it's 'not really funny' if you're being made fun of. But this isn't a song about the poor singer being pciked on: he takes his revenge by talking to/about his partner in a patronising and belittling manner, reducing him to the same level. So overall it's a song about pettiness and lack of respect for each other - and that's not really funny.
attractivecousin is of course right, the singer's partner is making fun of him, and of course it's 'not really funny' if you're being made fun of. But this isn't a song about the poor singer being pciked on: he takes his revenge by talking to/about his partner in a patronising and belittling manner, reducing him to the same level. So overall it's a song about pettiness and lack of respect for each other - and that's not really funny.