1 definition by Dr. Dyper (Reformed Sniper)

Top Definition
Adj. The act of inserting one's penis into a depleted toilet paper core and performing either vaginal or anal intercourse until the aforementioned core disintegrates with friction.
With 35 min. remaining, I roughed up that call girl's keister with a Shanghai Tunnel.
by Dr. Dyper (Reformed Sniper) August 27, 2016

Mug icon
Buy a Shanghai Tunnel mug!