When one ejaculates. Usually used in conjunction with "Bust a". As opposed to "Bust a nut", "Bust a chutt" or "Chutt a Butt" is used when one needs to signify the breadth of ones ejaculation, or when one is enamored with what one has "busted a chutt" to
Bro, imma bust a chutt
Girlfinna make me Chutt a butt