Jack Square 

Basically a jerk circle in a square formation.

"Damn we don't have enough guys for a jerk circle so i guess we'll just have to do a jack square."

Jack Square by Mr. Jack Square March 27, 2010

Square Root of Jack Shit 

Absolutely Nothing. See Square Root of Fuck-All , Square Root of Sweet Fuck All and fuck-all squared.

"He knows absolutely the square root of jack shit about food and cooking."
- James May, Former presenter of Top Gear UK, on Richard Hammond.

Square Root of Jack Shit by [e-mail] April 30, 2016

Jack-off Squire 

A Jack-off Squire is another guy who will jack you off if you want a hand-job to get your rocks off.

I think I'm my roomies' Jack-off Squire - they all seem to like it when they just lay back and let me beat their meat!

Jack-off Squire by USAF Cadet June 4, 2021