Tickle time sack torture
When grandma chains you down in her dungeon and fidgets, stretches, punches, squeezes and milks your "lactating fuzzy milk sack / stick" right under your fat, oily, hairy, meat flap. Results in Purple Sack / Asian sack.
My grandma gave me Tickle time sack torture last night, anyways... Wanna see my purple sack?...