2. When I saw U2 in concert in the spring of 1997, the 1979 classic by M called "Pop Music" was played, then came "Mofo", followed by "I Will Follow", then by several other U2 hits. Major kick ass.
Hey Motherf**ker = Abuse
2. Industry nickname for San Francisco based law firm Morrison and Foerster. The firm still uses the domain name mofo.com for its IP network services. The firm actually rebranded itself MoFo for a while until it realized that the strategy was less than successful.