(n) someone who travels in a traffic
lane adjacent to the lane he will soon need to be in, and cuts into the desired lane at the last possible moment.
(v) to need to be in a certain traffic lane and to
get there by traveling in an adjacent lane and then cutting into the desired lane at the last moment.
(n) I should
merge now, before I end up being a total sleeze.
(v) I wish I could will myself to merge into the proper
lane now, but I could get ahead of a lot of cars if I
keep going, and then sleeze in at the last minute.