Ah, every time this subject comes up (which has happened at least twice already), I just have to mention Gwen Stefani's Hollaback Girl. The people I know almost universally make fun of it.
The chorus is built around "this my sh!t, this my sh!t," Gwen Stefani tries to act tough, and then there's the part about "Let me hear you say this sh!t is bananas, B-A-N-A-N-A-S."
Some of her other songs have... strange lines as well. Of course, while What You Waiting For? was a good song, the line "Take a chance you stupid ho" that was built into it was kind of weird. "Rich Girl" took "If I Was A Rich Man," changed "man" to "girl" and added a bunch of "na-na-na-na-na-na-na-na"s. Her CD was kind of scary, because she kept talking about Harajuku girls in more than one song (the song for that is kind of creepy).
Then of course, in "Hey Baby," she made "chamomile" rhyme with "sex appeal." (I'm just sipping on chamomile, watching boys and girls in the sex appeal)
So yeah. While her songs are entertaining, she adds weird things into them. Heh.