Jelliott refers to a term which is a graphic, x rated, detailed description of an act, where a short description would suffice.
James: She had been pumped with so much spunk that it erupted out of every hole and she looked like an ornamental pond fountain.
Kate: What the hell?
Fi: Oh thats a Jelliott. James means she had sex.

James: By the time I had finished in the bathroom it resembled the industrial waste bin of the local tandoori restaurant after a week of not being emptied.
Kate: What the hell do you mean?
Fi: Thats another Jelliott. James means he had diarrhoea.
by dmmmmmm July 22, 2018
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a gay ship me and my faggy friends made up at school
“Hey do you know Jelliott?”
“No?”
“Well it’s a faggot ship🤤”
by kaeyascunmywhore June 8, 2021
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