'You dirty b***h': Shocking moment woman defecates on bus

A woman has been caught defecating on a Melbourne bus to the disgust of fellow passengers.

The disturbing incident was recorded on a mobile phone by a passenger.

People can be heard yelling "no, no, no, oh my gosh" as the groaning woman commits the indecent act in the middle of the bus.

She can be seen pulling down her pants and relieving herself on at seat.

The woman, wearing a grey beanie, a black hoodie and purple pants, is heard mumbling inaudibly on the footage after she finished making her mess.

She then tells fellow passengers she "couldn't help it", news.com.au reported.

The graphic act is all too much for one woman at the back of the bus who can't believe what she has just seen.

A fellow passenger demanded the woman clean up her mess. Photo / Supplied

"I'm going to have to go home and explain to my child why she can use the toilet and a grown woman can't," she says.

"I don't care about your child," the woman in the beanie replies.

The driver tells the woman in the beanie to get off the bus, while a passenger suggests the police be called, but the defecating woman says she wants to stay on the bus for one more stop.

One mother on the bus decides she has had enough.

"That is disgusting ... that is disgusting," she says to the woman who has made the mess.

"I have some baby wipes here. My three-year-old son is here ... You dirty bitch."

The mother hands out the wipes to the woman and demands: "Wipe it, wipe it, wipe it.
"You are disgusting."

When the woman appears as if she doesn't know what the mother is saying and doesn't respond, the mother says: "hello ...".