mainliner

[ meyn-lahy-ner, -lahy- ]
noun

  1. Slang. a person who mainlines.

  2. a person who belongs to a mainline group.

Origin of mainliner

1
An Americanism dating back to 1930–35; mainline + -er1

Words Nearby mainliner

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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