Critic Te Arohi, the student magazine, reported earlier this month that residents were receiving awards — such as "Black Rabbit" which stood for "best rack" — from the college’s students’ association committee.
The magazine said it was able to verify that the mock awards went back to 2009.
However, the woman, who did not want to be named, said she was a first-year resident at the college in 2000.
She was homesick during Orientation Week and kept to herself, so initially she was "confused" to receive a mock award from the Selwyn College Students’ Association for promiscuous behaviour.
"Then afterwards, when people started giving me funny looks and treating me different, I felt humiliated and bullied for just being a quiet person."
The first week at Selwyn was "overwhelming".
"We knew there were traditions, so I think most people just accepted that’s what happened."
Some former Selwyn College residents defended the awards to Critic, saying they were not intended to cause offence. Last week, board of governors chairman the Rev Aaron Douglas said the college management was unaware of when the practice of giving awards started.
"Both the board and college leaders have been crystal clear this behaviour cannot continue."
Management staff were not aware of the behaviour and were grateful to the people who brought it to their attention, he said. The woman said some of the awards were "funny and well thought-out" but others were "totally over the line".
"[I] was surprised to hear they continued and sound like they got worse," she said.
There was a Gentleman’s Club at the hall, and she claimed they compiled a list of the "hottest girls" while she was there.
The group was still listed as a "secret society" in 2018, under a list of Selwyn College Students’ Association traditions in an online handbook.
The present warden of the college said the students’ association was not able to comment.
Mr Douglas said the college was in the middle of reviewing the validity of its secret societies — which were organised by former residents, who would sometimes shoulder-tap the present ones.