The practice of engaging in sex without using a condom.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "barebacking" in a sentence
"Is using the term barebacking a symptom of continual societal demonization of gay people?"
"With amateur stars posting online videos for free and studio movies being pirated, studios may feel that barebacking is necessary for them to stay afloat."
"He's someone who learned the hard way about how naivety is exploited on that scene, with underage actors blithely cast in barebacking scenes by studio guys who pay little attention to age certification legislation."