Uhh yeah, in hyperspermia the total fluid is defined as greater than around 6ml, no 6oz lol.
From a medical study:
"One hundred and thirty-three ejaculates with hyperspermia (semen volume >6 ml) were divided into three groups: group A, n=66, semen volume 6.0-6.9 ml; group B, n=63, semen volume >7.0 ml; group C, n=4, semen volume >6.0 ml, no sperm in the ejaculates. Sperm motility, count, and morphology were determined according to the World Health Organization Laboratory Manual (2010).
Of the 133 ejaculates studied, the largest volume was 10.8 ml."
Even if some dude had triple the highest amount in this study, it would still be barely more than 1oz. Based on that, I'm a bit skeptical some guy unloaded what looks to be about 8oz into some glasses while gently wanking his cock in a weird ass manner, as he bizarrely presses on something by his balls with his other hand (like they all seem to do in these videos...) and cums intermittently for 5m. If I gently squeezed my cock like that, I'd be lucky to cum at all, let alone having back to back orgasms that all last like 1m.
Bio lesson for anyone not in the know - the semen generated by your testicles only accounts for like 4% of your cum - the rest comes from the prostate, so are we to believe this poor guy is holding multiple champagne flutes worth of seminal fluid in the largest prostate on earth (which would be crushing his urinary tract making it impossible to ********)? Whatever is coming out, it sure doesn't look like it's loaded with sperm, because it has the consistency of milk, not semen.
I mean - its a fun fantasy though and for sure, I'd love to see someone pump that into a pussy too, real or not.