1) It is a word customarily used between two people who are perceived as each others' homies; It stands for 'Bro' and 'Man.' The hybrid of the two creates the ultimate word for homies to exchange amongst each other.

2) A form of greeting between people of the male gender who are fuckin' homies.

The following synonyms may be used to substitute the word "Bran" but are not as commonly used: homie, home skillet, nig nug, niglet, smurfshit, breww, brotha.