This is another usage of the word "fap", which means to masturbate. There are three distinct levels of fapping and Fap-a-saurus Rex is the most extreme. It is someone who masturbates constantly, during every waking and non-waking moment. This is a person whose hand you never want to shake. This is the type of person who does not eat, shower, or sleep, because it takes them away from fapping.

Joe Schmoe: "Dude, have you seen Bill recently?"
Tim Fuckis: "Yeah about three weeks ago. That's when he became a Fap-a-saurus Rex."
Joe Schmoe: "Damn, so that means he does nothing but fap? Not even eat or sleep? And I thought I was bad being a Fap Master"

Fap-a-saurus Rex by Dash Random October 27, 2010

Get merch

fap a fatty

Fap a fatty (v.): the act of "packing a fatty" whilst on thou toilet and choking the chicken untill you nut

Bro last night when I came home I was so tired but the night was still young and I had to fap a fatty to stay awake

fap a fatty by Fappy Fatty December 14, 2017

Get merch

Fap-A-Thon

The action of Jay beating his micro penis so much he gets friction burns.

Jay does a Fap-A-Thon every week when James Charles releases a new makeup video.

Fap-A-Thon by A1 Purple December 22, 2024

Get merch

Fap-A-Thon

The action of masturbating for a extended period of time until you recieve friction burns

Jahaziel loves performing his weekly fap-a-thons after James Charles releases a new makeup video.

Fap-A-Thon by A1 Purple December 22, 2024

Get merch