An act when 2 men put their cocks inside each end of a Chinese fingertrap. They move back and forward causing the finger trap to jerk them off and to make them touch cock tips.
Hey guys, I just say the janitor and the math teacher doing a Chinese cock trap in the bathroom!
A description for the presence of too many men and not enough women, "tube station" draws from a play on words of the European transit system. Analogous to "sausage fest."