What is Connect Four?
1.
A sexual position involving exactly two males, two females, and one double-ended dildo.
Both females get on their hands and knees and connect to each other via the double penetration dildo.
Both males stand facing each other and are connected to one female each, via the penis to mouth.
To avoid male-to-male eye contact, each male should only look at the female who he is 'connected' to.
Outlined below:
Man=Penis=>Woman<=Dildo=>Woman<=Penis=Man
Two couples, Ryan & Elizabeth, and James & Kelsey, went on a double date. Afterward, they all headed back to Ryan's place for a game of Connect Four.
See
2.
The game in which
"You shank my jengaship!"
"What? I Shanked your jengaship? We're playing connect four!"