mainline

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1 mainline /ˈmeɪnˌlaɪn/ adjective
1 mainline
/ˈmeɪnˌlaɪn/
adjective
Learner's definition of MAINLINE
chiefly US
: belonging to an established and widely accepted group or system
2 mainline /ˈmeɪnˌlaɪn/ verb
mainlines; mainlined; mainlining
2 mainline
/ˈmeɪnˌlaɪn/
verb
mainlines; mainlined; mainlining
Learner's definition of MAINLINE
slang
: to inject (a drug) directly into a vein
[+ object]
[no object]