Since the media attention, many women have turned to social media and post photos of their underwear accompanied by the hashtag "This Is Not Consent".
The jury of eight men and four women heard from the defendant at trial.
Her comments follow a recent high-profile rape case where a complainant's underwear was examined by the jury.
'Consistently we see in court where women's bodies have been violated and women are made to feel like it's their fault, ' she said.
Minister Ruth Coppinger also held up a pair of trousers in the Irish parliament, asking the Prime Minister: 'How heroic do you have to be to pursue a rape trial in this country?'
Prosecutor Tom Creed argued a witness allegedly said the defendant had his hand on the teen's throat. She said stop and I stopped.
According to Ms Coppinger, this is not the first time underwear has been used as evidence within a rape trial in Ireland.
"Nobody asks to be raped and it's never the victim's fault".
The politician who brandished the underwear, Ruth Coppinger of Solidarity - People Before Profit, expressed concern over the fact that a 17-year-old was "put in the dock for her choice of underwear and she was open to meeting someone was the implication, she was asking for it".
According to The Independent, the Law Reform Commission is conducting an examination of Ireland's legislation in the area of rape.
The protests across Ireland are being organized by the socialist feminist organisation ROSA.
Protester Jackie Foley from Ballyvolane said there can be no place for "victim blaming or victim shaming".
"The worldwide solidarity that's been extended to these bad cases when they're exposed will go a long way towards pushing for genuine legal change, and unfortunately that comes from above, but we're going to push from below to ensure it happens now".