When a car entering traffic expects all the traffic to accommodate them by either slowing down or moving lanes, instead of them gaining speed to match the traffic.
I was going down the highway in the right lane and this idiot coming down the on ramp was doing a mexican merge at 40 mph, and I had to slam on my brakes to let him over or we would've hit.
by solarecreator July 29, 2014
Get the mexican mergemug.