I always thought Friday was a fantastic deconstruction of the genre, whether intentional or not. The banality of the lyrics are in truth not significantly worse than the lyrics of the average pop song. How many song lyrics boil down to the same lame refrain "we went to a club, got so drunk, danced so much, and had so much fun, yeah, partying! whoo!"? Most, but not all, songs of that genre dress up their banality in slightly more interesting turns of phrase but ultimately it's the same thing. Compare "Friday" to "Like a G6", for example.