spl00j Share definition Flag spl00j = cum in 1337 language. Mostly use by piconjers (followers of Piconjo. omgz0rz j00 r so secksehy dat i liek spl00ged wen i 1st saw j00!!!1! spl00j by PiconJohno February 19, 2005 0 0 Get merch Get the spl00j mug. Buy Now — $32.95 See more merch