A term 1955 Doc Brown used when 1985 Marty McFly traveled 30 years back in time.
Doc: So tell me, future boy, who's President of the United States in 1985?
Marty: Ronald Reagan.
Doc: Ronald Reagan? The actor? Then who's vice president? Jerry Lewis?
by Tbc77 July 6, 2021
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any aged male who is sexually into males. he can either be bisexual/transexual/all gay/ ecetera to be called a future boy
when my guy friend came out of the closet i told him "yay be gay now future boy." Now he sleeps with guys almost every weekend and supports gays by going to the gay parade each year
by raspberry 411 March 19, 2008
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