I have to stand up in defense of Ginger here- "you can get yourself clean" is most definitely a lyric in YMCA. Granted, it wasn't the correct lyric for the game, but everyone was acting like she'd made up some super bizarre version of the song. I mean, even in context it's a strange lyric, but it is at least real:
You can get yourself clean/you can have a good meal/you can do whatever you feel