Bakin Da Phish. Share definition Flag To be fully nude in a tent with two other people of the same sex. The tent must be poorly assembled to truly use this meaning. One time, I was "Bakin Da Phish." with these other guys inside our Tristan. Bakin Da Phish. by JAM$TA B0Y July 31, 2011 Get the Bakin Da Phish. mug.