The opposite of a cockblocker. A person who functions as an intermediary between two or more parties in negotiating sex, punani, or the like. A type of wingman, this admirable person manages to hook up two people.
A: "She's such an awesome cockbroker, I got lucky trice last night cause of her!"
B: "LOL I just learned a cool new word."
When you break up with someone with a high sex drive and you will miss having sexual encounters with them. Typically you do not pay for sex and you get it so much that you're cock becomes dependent on the level and frequency of the sex. Its the same as being heartbroken except you never loved your partner you just loved the sex so your heart is fine but your cock is not.
This is when your girlfriend is singing and sucking your dick at the same time, using it as a micro(macro in my case)phone. It comes from the combination of the words cock and karaoke.