Mother of All Short Squeezes, a prophesied event in GameStop bagholder cult where the stock will rise by extreme percentages, compared to Qanon's 'storm'.
"And, just like Qanon's 'storm', they too have a version of Valhalla called MOASS (mother of all short squeezes)... Basically a divine day when GME stock will go up by 1,000 or 1 million percent depending on who you ask."