mainlining

10 LETTERS · 3 SYLLABLES · STARTS WITH M

mainlining is a valid 10-letter word worth 13 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

M3A1I1N1L1I1N1I1N1G2

3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 2 =13 PTS

DOUBLE WORD → 26TRIPLE WORD → 39

MEANING

What does mainlining mean?