What does bnt mean in slang?

Excuse me, could you please explain what the term "bnt" stands for in slang? I've come across it in a few online conversations recently and I'm curious about its meaning. It seems to be used in a fairly casual context, so I'm assuming it's some kind of abbreviation or acronym that's popular among a certain group of people. Could you shed some light on this for me? Thanks in advance for your help.