sanilnik Share definition Flag Dirty vanity, or toilet. could also refer to a badly abused shitter. In some cases emits a foul odor. Avoid at all costs yo! i ate some bad burritos - spent the whole night on the sanilnik. sanilnik by russian P1mpers November 8, 2009 0 0 Get merch Get the sanilnik mug. Buy Now — $32.95 See more merch