The act in which two males will simultaneously insert their penis' into a womans vagina.
One of these days Bill and I are gonna try Merging Lanes on a girl.

Dude Bill and I just Merged Lanes on a hooker.
by SmackyMcPimpHand June 23, 2010
Get the Merging Lanes mug.
An onramp with a huge blind spot that merges abruptly into traffic with no warning. Often located on the left side of the road where traffic is moving fastest.
Oh great, this is a merge-or-die lane. Do I drive into the wall or into the car going 80 MPH?
by Perimeter May 6, 2009
Get the merge-or-die lane mug.