Epic, unprecedented, fantastic, awe-inspiring, with fanfare. Usually refers to an admirable action, but can also describe anything visually, technically or demonstratively notable or outstanding.
His ability to projectile vomit into the intended receptacle was Olympic.
She strode in 6" Louboutins on the craggy cobblestones of the Meat Packing District in Olympic fashion.
A bowel movement, generally quite large, which immediately preceeds participation in a sporting event.
'Are you off to the game now?'
'No, Im just going for an Olympic, I'll be back in five and we'll head off then!'