Sunny,
A couple of things. 1) there are a ton of songs my a ton of artists that can be construed as "sexist". That goes for male and female artists, rock and pop music alike.
2) A couple of songs from Nickelback that your friend could be referring to would probably be:
Something In Your Mouth
Figured You Out
Nickelback, what a joke band.
You enter a band thread to say how much you hate them? lol
I don't particularly like them either but joke band, not really. Its just opinion based. I wouldn't call them a joke just because they're not my cup of tea.