An abbreviation of: "shaking my rat", smr is typically used when something is obvious, plain old stupid, or in disappointment, and is used primarily by LBC_Bulletproof.
You don't know what smr means? smr
by LBC_Bulletproof October 10, 2018
Get the SMRmug. In Black Ops 2 it is a extremely overpowered gun in multiplayer but its absolutely dogshit in zombies needs to burn in a hole I say. DONT GET ME STARTED ON THE PACK A PUNCH VARIANT THE SMILR the only thing it makes smile is the zombies when you shoot them.
The SMR is so overpowered I want to die
by MADMAN32417 July 16, 2018
Get the SMRmug. 
by shimmyshimm August 22, 2022
Get the SMRmug. 
