To break the chains that you have seemingly been held down by. Not falling into the statistics. Making it from poverty. When a addict begins a new life. He is breaking chains.

Having sex with a milf or cougar who has kept that pussy behind rusty gates for a while -- metaphorically speaking. If the milf or cougar in question has literally kept the pussy behind rusty gates, you do not want to break the chain off it.

when someone breaks an internet chain, these people are usually called "chain breakers"

internet chains are usually multiple messages following one message, then posting multiple messages relating to what the poster wants it to be.

On Myspace or other sites with private messaging, after a series of back-and-forth messages, sending one that ultimately ends the chain.

a song by the heavy metal band Dokken