For the record, Lil Jon does not sing the lyric in question in “Yeah,” that’s Ludacris.
Now, if someone could follow up asking why he used the window and the wall as a unit of measurement in “Get Low,” my life would be complete.
With that being said, both Lil Jon and Luda are two of the eight writers credited for that song, so it’s fair to say he’s qualified to answer these questions.
Beyond that one part, though, I think my understanding of that song is down pat.