When I first heard this song I couldn't figure out what  a "Thun Thun" was now that Ive seen the video I still don't know.'Don't drop that Thun Thun' is a new radio single from a group called 'Finatticz' it is quickly becoming a smash with the kids. With its over the top bass line and even more over the top lyrics you really cant go anywhere without some preteen singing this song. But that still doesn't help explain what a "Thun Thun" really is all I know is if you drop it just pick it up.