(adjective) being the one or ones of a class with no other members
UM abbreviation
UM is an abbreviation for Unique Mods
What does UM stand for?
UM stands for "Unique Mods"
Definitions for Mods
(noun) a youth subculture that began in London in the early 1960s; a working- class movement with highly stylized dress and short hair; listened to rhythm and blues music and travelled on motor scooters