A time when you tell your boyfriend (or girlfriend) that you need some time to figure things out. This does not mean, contrary to every guy's thinking, that you are with someone else. If you are with someone else and you are asking for a break, you're a cheating, indecisive whore. This is, instead, a time when you think things have gotten too serious too quickly, or a time when you have some serious shit going on, and need time to figure out what's best for you. Usually your partner won't give you this time and instead will be insecure and thereby ruin the whole notion of the break. Probably, if this person is so insecure that they can't recognize what's going on in your life, then you won't work out anyway and you should break up with him or her, instead of taking a break which will ruin things anyway.
Yeah...you really never understood me, let's just break up.