What is Yarmer?
1.
underground slang for a marijuana cigarette, or 'joint'.
If you are talking about unrolled quantities, the term is often condensed to 'yarm'.
the term originated in Langley, B.C:
a city known for its many marijuana grow operations.
"let's go smoke some yarmers"
"I wanna buy some yarms"
"working at the yarm farm"
"got any yarm?"