A word accidentally used when a gymnast is trying to talk about what they do, but can't stop thinking about your monster cock and/or bukakke.
Person 1: So at my gym yesterday, I did a triple back-hand spring for the first time.
Person 2: That's just lovely (Pretending to give a fuck)
Person 1: Yes, being a jizznast is amazing! Oops, sorry, I meant gymnast.
by LeAxelMonroe August 2, 2012
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During coitus, a male cartwheels over his partner, all the while climaxing on them (with a fountain of jizz).
"Great form!" Jessica exclaimed as Will executed perfect Jizznastics!
by cum-pony11 November 15, 2019
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The act of ejaculating on someone as they flail trying to escape.
She tried to get away, but i jizznastics her.
by RBEjbCCt May 15, 2015
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Ejaculating volume of Olympic-like proportions.
I did jizznastics with my dong all over the tig’ol’bitties!!!
by Ej1984 March 4, 2019
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