When you insert a funnel into your woman's ass and then proceed to pour different colored marbles into it. You then perform anal sex on your lady to mix them up. You and your buddies can then place bets on which color she'll squeeze out first.
by Casual Agent April 13, 2006
When you insert a funnel into your girl's ass, then pour different colored marbles into it. You then perform anal sex on your lady to mix them up. You and your buddies can then place bets on which color she'll sqeeze our first.
by Casual Agent April 7, 2006
The act of inserting a funnel into ones anus, whilst shitting through it into another persons mouth, straining the nutrients and waterier contents of the shit. Variations may involve the addition of a liquid such as urine for easier consumption.
Person 1: Fuck dude, I'm feeling so queazy right now, I think my shitters gonna blow.
Person 2: Well don't just waste it in your undies dude, want to do a Tunnel Funnel?
Person 1: I'm down for a good old Tunnel Funnel. Thanks man, your the best older brother ever.
Person 2: Well don't just waste it in your undies dude, want to do a Tunnel Funnel?
Person 1: I'm down for a good old Tunnel Funnel. Thanks man, your the best older brother ever.
by ErectEnigma July 27, 2020
After a night on the booze and Kebabs, Noel opened the door of the Channel Tunnel Funnel and gave birth to a dead otter.
by The Wheelchair Detective August 22, 2006