The stage of being close to ejaculating in a bitch or onto some tissues

When you’re to listen WHEN YOURE FINNA BUST A FAT ONE or to cum In large burst

When one person or multiple ejaculate on an object or another person

Translated into simple English: I am going to ejaculate all over the place.

This phrase has said to originate from TVFilthyFrank, where he uses this phrase in a song of his called "FINNA BUST A NUT". This phrase means that you are going to masturbate and ejaculate, after your masturbation, everywhere in the room, causing a sticky white mess of semen.

It means ya bustin. FAT ONE in a girl