1 definition by ErectEnigma
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