Syncrobation is when your masturbation clock synchs up with your bud's and the cumforting truth emerges -- probably through some kind of chat -- that you have both just simulwanked. If you are within high fiving distance though that truth becomes terror or leads to sex.
"Dude, how's it going?"
"Good. Just finished jerking off, about to play some videogames."
"Dude, me too!"
*both* "Syncrobation five! o/ \o"