Shashainy Share definition Flag (shu - shane - eee) A soft/smushy and grainy fruit that is not pleasing to eat because it is over ripe. Ick!!, that apple was shashainy! Shashainy by journburnfernlearn August 25, 2010 0 0 Get merch Get the Shashainy mug. Buy Now — $32.95 See more merch