When two people who are in a relationship decide they need space from each other. They are not broken up, but they're not necessarily together still. Usually one person will expect the other to not flirt or do anything with other people while on the break. They also have intensions of staying together. Also known as being in a relationship, but it being complicated.

break section of a record or song. The word “break” means the short section of a record that can be looped on a sampler to create a longer, seamless piece of music from this one section. The term derives from the “breakdown”, a part of the funk or disco records where most of all the other instruments drop away, leaving the drummer, or maybe the drummer and percussionist, or drum and bassist, to play their parts unaccompanied. This provides an instant rhythm section to create a new tune from!
These breakdowns came from the 60’s and 70’s funk production and artists like James Brown, who invented the use of the third beat. Before James Brown all popular music has been using a straight 4/4 time beat. Using the beats in between is what made it funky.

The 1st shot in a pool match.
'Break', because the balls are in a triangular pattern, then you 'break' them up.

A Break when your girlfriend thinks that she needs time away to sort things out. Which is total and utter bullshit. It really means she is too scared to get serious and she just wants to show her ass and whore herself to as many dudes as possible cuz she's just like that and she swears thats not the case but you later find out that while your just jerkin off, she makin out with other dudes. Then you realize you don't need this shit and you grab ur balls or whats left of them and tell her that we should just be friends(really means you broke my heart you dirty bitch now you will play my game) and when you do break it off she will say thats sucks and feel really stupid and blow ur phone up and she will ask you why u cant it be the same like it was and u say NO POCKET BULLSHIT and get back ur swagger and then you ask for your gifts back cuz she's got a new man and she will get so pissed and you say you don't want her mind to stray like it did when we where together and she will be really mad and thats what she gets and she will realize she lost one. and tell her ur not one of many.

The real "urban" definition is to leave quickly, run away. it's not all this, "we were on a break" you guys are thinking too literal.

When a guy is being danced on by a girl at a club or party and he cannot keep his composer and starts to become noticeably aroused. It is very embarrassing if you don't know the girl or when she stops dancing other people can see that she 'broke' you.
Most guys get broke the first few times they ever get wallies, lapdances, or grind with someone but learn how to control themselves and focus but sometime if they are extremely attracted to someone they still get broke.