The Brief: Blem is an interchangeable slang term for cigarettes and marijuana.

DEEP DIVE
Blems is a popular slang term in Europe that people use for cigarettes. In the United States, blem is more of an adjective that refers to when a marijuana user has consumed too much cannabis where they feel too high or under the influence.
Blem on Twitter
If you argue with me, youβre a top khawra and you eat blems for dinner
— Miladπ€ (@m1lli_a) June 15, 2020
bang on 2 months clean from blems
— haaris (@__haaris) June 12, 2020
Imagine throwing blems at me & i donβt catch them πππππππππππππππππππππππππππππππππ
— High Class Ghetto π (@brandyxoxoo_) June 13, 2020
ion ever throw blems so if you gotta problem, be direct.
— ATII HERNAND3zπ° (@ataliaa31) June 11, 2020
If ainβt no animosity shouldnβt be no shade and BLEMS!
— πΉπππ©π©π©πΎβπ¬π§ͺ (@Sav0rMyyFlav0r) June 8, 2020
Itβs 6:20AM and ur smoking blems pic.twitter.com/FdAFPCRePJ
— isthatwillzo._1𧬠(@isthatwillzo1) June 11, 2020
Stop throwing blems it was 100% your faultπ
— Alexander Benitez (@drizzy_b7) June 13, 2020
Watching two people whoβve blocked each other throwing blems on the socials . Lmao Iβm tuned in baby spill some more π
— jasmine (@jas_vo510) June 8, 2020