MAINLINER
Meaning of MAINLINER in English
/mayn"luy'neuhr, -luy"-/ , n.
1. Slang. a person who mainlines.
2. a person who belongs to a mainline group.
[ 1930-35, Amer.; MAINLINE + -ER 1 ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012