defloration
Defloration is the losing of one's virginity, but the tag is used specifically when a yukkuri declare out loud that they've lost their "yu-ginity"
It's mainly shouted out by yukkuris who lost their female (mamumamu) virginity without consent, often not even from refreshing but instead from mamumamu abuse as a random object is inserted to it. Usually they'll also mention that they were saving it for someone else.