(BE) stands for "Before Earth" when there was just nothing but space. Usually, the context is saying "Insert topic was only cool in the (BE) era!"
Examples
"Killing was only cool in the (BE) era, one year before Earth which was 1 BE!"
"The era before earth is (BE)!!"
"Killing was only cool in the (BE) era, one year before Earth which was 1 BE!"
"The era before earth is (BE)!!"
by CarterSmith September 14, 2023