Dirty Bit is a song by Black Eyed Peas that talks about having a good time and getting wild. The song has a catchy beat and talks about partying all night long. The chorus repeats the phrase 'Dirty Bit' several times. The song also references Mick Jagger and has a line about being the baddest of them all. Overall, it's a fun and upbeat song that's perfect for dancing and letting loose.