The 2016 Sydney Rose of Tralee, Brianna Parkins, says she had to fight off a man who put her in a headlock at a bar in Kilkenny last week.
The 28-year-old, who now lives in Dublin, claimed the man went on to try to kiss her against her will, forcing her to push him away from her and her friend.
Speaking on The Ryan Tubridy Show on RTE Radio One, the Sydneysider said "in a perfect world", the incident would have been seen at the time as an assault.
"The plan was to head down to Kilkenny, great to drive through the town, the craic was moderate to high, we were all excited, tanning each other's backs in the Airbnb before heading out," she told Tubridy.
"We get to the first bar and within 10 minutes - I hadn't even ordered a drink yet - I get put in this headlock by this massive sort of rugby-built dude.
"He grabbed me in a headlock in one arm and my friend around with the other arm and just goes in for the shift. It was like being cuddled by an Alsatian, slobbering all over you.
"This was maybe 9.30 or 10pm - not too late for being that sloppy."
She said that this wasn't the first time something like this had happened to her on a night out in Ireland, but what shocked her further was that no one stepped in to help when they saw her forcibly release herself from his grip.
"In a perfect world, it would be assault but I'm 28, I've been going out for years, it's kind of sad that I am almost desensitised to that - you expect that now on a night out," she said. "But what I didn't expect was, I reacted like a normal person, grabbed him by the back of the head, reefed him off me and my friend, gave a few solid good shoves for good measure and he kept coming back at us.
"I just had to keep responding more and more aggressively and everyone in the bar turned to look at me as if I am the person causing the problem, but this bloke had a good 30kg on me - physically, we weren't evenly matched.
"No one helped, his mates didn't help, they thought it was funny and the bouncer looked at us like they were going to almost consider kicking me out."
She moved on with her group of friends to another bar after they finished their drinks, and while they were approached by men, nothing happened when they refused their company. However, she added that there was a further incident in another bar later in the night when a man "screamed into her face" when she turned down his advances.
"We don't even stay half an hour, a big group of guys are dancing around us, dancing on us quite aggressively," she said.
"They're trying to cuddle us and put their arms around us and you're like 'no thanks' - as a girl you try give the polite 'no', because you're told not to be bitter or aggressive.
"He got up into my face and screamed, 'You're on a night out, love' and I'm like, 'I know, I'm dancing with my friends and having a good time and I don't want to be bothered by you guys'.
She said the sort of behaviour she witnessed would not be seen in outback pubs in Australia.
"I've been in rough, outback pubs in Australia but I've never had that level of carry-on happen."
She said it made her consider that these kinds of incidents should be reported to gardai.