Spinner
A spinneer is someone who watches meatspin for at least 10 rotations.  This basically refers to someone as being gay.

Meatspin is a shocksite, which displays a video of two men having sex in which the catchers penis is flying around in a spinning motion, hence the name spinner.  Below the video is a counter of how many rotations the penis has made.

A shock site is a website intended to be offensive or shocking to most viewers, containing material many people would consider extremely distasteful.  Usually sent to someone, when they are expecting something else
WOW Jim is a spinner, what a fag!