chilleanin Share definition Flag The act of sippin and dippin sometimes even trippin when you are gettin drunk or fucked up!!!!!!!!! Brian was gettin drunk and than we notice that he was chilleanin and said wwhhaattt!!! chilleanin by Jensonbob December 3, 2006 0 0 Get merch Get the chilleanin mug. Buy Now — $32.95 See more merch