What is the definition of Testmac?

"Testmac is the ultimate existential crisis comedian - a term that humorously describes someone who's so confused about life, they're convinced their test results are a cosmic signpost pointing them towards a parallel universe where all their problems just disappeared. But let's get a bit edgier: 'After the testmac moment, I realized my life was a script with no ending, just a series of existential 'what's my purpose?' monologues and a few too many questionable Tinder matches.'"