Ronin

Landless or masterless peasant soldiers or samurai who through dishonor or the loss of their masters were forced to wander Japan until some other lord would accept their services.

A gangster without a gang.

\\Ro"nin"\\, noun: In Japan, under the feudal system, a samurai who had renounced his clan or who had been discharged or ostracized and had become a wanderer without a lord; an outcast; an outlaw. a lordless samurai, esp. one whose feudal lord had been deprived of his territory. The Japanese word “ronin” (pronounced rô-nçn) refers to a roving, mercenary samurai who serves no master or warlord.

Ronin is a straight god. Hes a gangster and can beat the fuck outta anyone who tries to fight him. He is insanely strong and can get any girl he wants. Everyone loves him and he is really popular and funny.

Noun,
In the BDSM world, Ronin refers to a subordinate who is without a Dominant but still considers themselves as living the lifestyle.
More often than not they are usually just looking for a good fit for their D/s preferences and not willing to settle

Ronin is the hottest person you will ever meet

Japanese slang for a college dropout or somebody who failed the college entrance exam.