What is Stop N' Merge?
1.
A technique employed by ignorant and/or terrified drivers when merging onto a freeway: instead of accelerating to merge into faster traffic, these drivers actually stop and attempt to cut into oncoming traffic from a complete standstill. The "stop n' merge" is a dangerous maneuver.
I almost got in an accident today because some clown decided to pull a stop n' merge in rush hour traffic.
See