To make the other sexual partner cum. Usually used as a statement to describe what you are going to do, occasionally used after what you already have done.
Tim, I know your home alone tonight, how about I come over and I'll break you off.
Julie, you're being really bitchy today, do you need me to break you off?
When a person, male or female, tends to stroke your penis until you get off. Otherwise known as a handjob. It is another way to have someone else masturbate you when you really do not want to have sex.
Last night Sarah asked me, "Can I jack you off? So, I said "sure".
"Wow, I really would love to jack you off, baby!"