Definition of bottlenecked:
(n) :
(figurative) In traffic, any narrowing of the road, especially resulting in a delay.
(n) :
(by extension) The part of a process that is too slow or cumbersome.
(n) :
The narrow portion that forms the pouring spout of a bottle; the neck of a bottle.
(v) :
(transitive) To slow by causing a bottleneck.
(v) :
(intransitive) To form a bottleneck.
(n) :
(music) A portion of a bottleneck placed on the finger and used as a guitar slide.