main line(redirected from mainliners)
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A group of suburbs of southeast Pennsylvania. The fashionable area was named after the chief railroad line traveling west from Philadelphia.
1. A principal section of a railroad line.
2. Slang A principal and easily accessible vein, usually in the arm or leg, into which a drug can be injected.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Railways) railways
a. the trunk route between two points, usually fed by branch lines
b. (as modifier): a main-line station.
2. (Automotive Engineering) US a main road
(Recreational Drugs) (intr) slang to inject a drug into a vein
having an important position, esp having responsibility for the main areas of activity
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. a principal highway or railway line.
2. Slang. an accessible vein that can be used to inject a narcotic.
v. -lined, -lin•ing,
1. Slang. to inject a narcotic directly into a vein.v.t.
2. Slang. to inject (a narcotic) directly into a vein.adj.
3. having a principal, established, or widely accepted position.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Main Line- The principal line of a railway (1841), it also has the meaning "affluent area of residence" (1930s), originally that of Philadelphia, from the "main line" of the Pennsylvania Railroad, which added local stops to a string of backwater towns west of the city in late 19th century that helped turn them into fashionable suburbs.
See also related terms for railway.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.