What is Bottlenecking?
1.
using pedestrian roadworks to such an effect that conversation can be struck up with a random member of the public with a view to taking them back to your place to
"How did you pick her up?"
"I bottlenecked her on Kilburn High Road"
2.
Using a bottle, preferably a glass one, to aide sexual stimulation.
"The young doctoral intern was astounded to find the farmer's penis lodged inside of the coke bottle while
bottlenecking ."
See
