I wasn't in this game, but my friends told me about it.
Someone kept trying to kill Tryndamere during his ult. But kept dying. He wouldn't give it up. He'd eventually come toe to toe with Tryndamere and when Tryndamere came close to dying, he would ult, prolonging his possible death while the other player (couldn't remember their champion) tried to kill him and eventually died because he didn't run.
When questioned by my friends (his teammates) as to why he kept doing this knowing full well what Tryndamere's ultimate does (even though this was around level 10 - 15 summoner levels) his response was, "I thought I could outsmart time." So instead of waiting for Tryndamere's ult to wear off, he thought he could just outsmart it into speeding up, causing his ult to last shorter. Surely he was trolling, but doesn't make it any less hilarious.